About 6000 years ago, the Sumerians discovered a cheerful drink, beer, which became popular all over the world. In order to maintain the unity of beer flavor, freshness and quality, the membrane filtration process needs to firmly control microorganisms and organic matters, clarify, and better vision. Hangzhou Dali has more than 20 years of development and manufacturing experience, combined with the laboratory can provide Microbiology and validation services to ensure that the products provided are stable and efficient. Beer is a kind of low alcohol fermented wine with malt and water as main raw materials and hops (including hops products) fermented by yeast. Note: including non alcohol beer (dealcohol beer). According to the industry development and consumption demand, it is mainly divided into: cooked beer, draft beer and fresh beer. Cooked beer is pasteurized or instant high temperature sterilized beer. Draft beer is a kind of beer without pasteurization or instantaneous high temperature sterilization, but using other physical methods to eliminate bacteria and achieve certain biological stability. Fresh beer is a kind of beer without pasteurization or instantaneous high temperature sterilization, and a certain amount of live yeast is allowed in the finished product to achieve certain biological stability. Main filter points and filter element application in beer production: The clarification and filtration in wort preparation process include bag filter, diatomite paperboard filter, etc., and the use points related to filter element filtration: gas filtration, water filtration and beer filtration. Gas filtration: air particle filtration, carbon dioxide particle filtration, steam particle filtration. Pre filter element: polypropylene membrane filter material with high pollution capacity, pleated structure, about 5 μ m in liquid For filtration accuracy, it can reach 0.3 ~ 0.5 μ m in gas. Sterilization filter: PTFE monolayer / double-layer membrane or 100% filtration of all kinds of bacteria and bacteriophages, which can be repeatedly online steam sterilization. The absolute filtration precision of 0.2 μ m in liquid and 0.01 μ m in gas can be achieved. Steam filter: sintered from stainless steel powder, with absolute filtration accuracy of 10 μ m in liquid and 1 μ m in steam. Water filtration: aseptic water preparation filtration system, which is used for tank farm process water, yeast washing, CIP, bottle washing / wine filling machine cleaning, etc. System configuration: pre filter PP and other materials, absolute filtration accuracy: 2-5 μ m; sterilization filter PES or nylon, absolute filtration accuracy: 0.45-1 μ M. CIP filtration generally uses PP and other filter materials, with an absolute filtration accuracy of 10 μ M. Beer filtration: capture filtration, fine filtration and pure draft beer sterilization filtration. PP filter material is used for the filter element of beer capture filter and fine filter, and the absolute filtration accuracy is 10 μ m and 1.5 μ m, respectively. Pure draft beer sterilization and filtration equipment is specially used for sterilization and filtration before filling, so as to remove spoilage bacteria and other harmful microorganisms in beer and ensure the biological stability of beer. The pre filtration material is generally PP, the absolute filtration precision is generally 0.5-1 μ m, the sterilization filtration is nylon or PES membrane, and the absolute filtration precision (LRV > 10 ?) of 0.45 μ m is used. The integrity of filter element is 100% before delivery. Note: for detailed technical solutions, please contact your sales engineer.
The taste of wine is an organic combination of technology and art. Filtration technology plays a vital role, such as particles, crystals, residues, organic matter, bacteria and yeast microorganisms, etc., which always affect the body, but with a delicate balance, the whole process control is the best solution. Many years of development and manufacturing experience combined with laboratory verification and analysis services, we bring together every solution and product, and apply it to the brewing process, so that customers can get full-bodied wine with pure taste and unique style. Ripe grape string is the main raw material of winemaking, good wine, the craft is equally important. The brewing process represents as much potential quality as possible in the raw material, and is economical and perfect in the wine. Wine features: 1. SO2 plays an anti-oxidation and fresh-keeping role from picking, pressing, fermentation, ripening to bottling. SO2 (usually potassium metabisulfite K2S2O5) is also added to wine as a protective agent and antioxidant, which can kill bacteria while protecting the natural fruit properties of the wine and preventing aging. 2. Tartaric Acid, whose scientific name is 2, 3-dihydroxysuccinic Acid, is derived from grape fruits. Its physical properties make it easy to crystallize at low temperatures and produce insoluble calcium salts, etc. Filtration applications in wine production 1. Clarification and filtration: generally, diatomite filter and paperboard are used for filtration, or the tangential flow filtration system of hollow fiber is adopted. 2. Remove tartarate crystal (potassium tartarate, calcium tartarate) and other particles, PP melt spray or fold filter core, 2-3 m nominal accuracy, 10 m absolute accuracy. 3. Wine recovery: solid-liquid separation system, such as plate and frame filter press, is adopted. 4. Pre-filtration before bottling: PP or GF folding filter element, 0.2-0.45 m nominal accuracy, 1 ~ 2 m absolute accuracy. 5. Sterilizing filtration before bottling: PES/N66/PVDF membrane filter element, 0.45 ~ 0.65 m. 6. Process and bottle washing water filtration: PP large-flow folding filter element with 40 m absolute accuracy, PP folding /GF folding/N66 film/hydrophilic PVDF film /PES film filter element with 0.45 ~ 1.5 m absolute accuracy. 7. Sterilization and filtration of process gas: hydrophobic PTFE membrane filter core, 0.22 m, up to 0.01 m in gas. Note: For detailed technical solutions, please contact your sales engineer. Examples of red wine brewing techniques:
Soft Drinks Filtration
Soft drinks have become a mainstream commodity in People's Daily consumption. However, due to the change of people's consumption concept towards health and safety and the stricter supervision standards of the soft drinks industry implemented by the state, product adjustment and process equipment upgrading are imminent. Hangzhou Dali's filtration solutions and products cover the standard required for filtration and separation of soft drinks to help customers ensure product compliance, nutritional beauty and maintain unique flavor. The main raw materials of soft drinks are drinking water, extracts of roots, stems, leaves, flowers and fruits of plants, concentrated liquid, food additives including sweeteners, sour agents, flavors, fragrances, food coloring stabilizers and preservatives, and some add certain gases (nitrogen, carbon dioxide, etc.) to enrich the taste and product experience. In the production process, sterilization, particle and impurity interception, accurate clarification, etc. involved in the process will have an impact on the final product quality, so it is very important to select the appropriate filtration products.Main filtration process points and recommended filter elements in soft drink production:Water filtration: specific applications: water for products, CIP water, equipment cleaning water, aseptic filling water, etc. Filtering requirements vary from application to application.Coarse filter for the removal of large mechanical particles such as sand, PP melt jet/fold filter core, 40-70 m absolute accuracy;Activated carbon particle capture filtration, PP melt jet/fold filter core, 20 m absolute accuracy;Ion-exchange resin capture filter, PP melt jet/fold filter core, 5 m absolute accuracy;For filtration before entering the clear water tank, PP melt jet/fold filter core, GF fold filter core, 2 m absolute accuracy;Water sterilizing/reducing filtration, PES/N66/ hydrophilic PVDF membrane filter core, 0.22/0.45 m, can be verified by bacterial challenge test for integrity test.Gas filtration (air, nitrogen, carbon dioxide, etc.) :Prefiltration of gas: Used to remove particles and protect the subsequent sterilizing filter. PP folding filter element is recommended, with 10 m absolute accuracy, up to 1 m for gas filtration.Tank ventilation and ventilation; Sterile gas transfer materials, etc. The hydrophobic PTFE membrane filter element is recommended, with a precision of 0.22 m and a gas filtration accuracy of up to 0.01 m. The integrity test can be carried out after being verified by bacterial challenge test.Respiratory port filtration of sterile storage tank: Hydrophobic PTFE membrane filter element is recommended, with a precision of 0.22 m and a gas filtration accuracy of up to 0.01 m.The purpose of filtration is to remove particles and aerate with high diffusion and uniformity. Stainless steel powder sintered filter element is recommended, with 10 m absolute accuracy, up to 1 m for gas filtration.Soft drink clarification and sterilizing filtration:Fine filtration and degerming filtration: deep cardboard filter, or deep cardboard filter stack.The current new process recommends the tangential flow ultrafiltration step to achieve the purpose of coarse filtration, fine filtration and sterilization. The product has hollow fiber organic ultrafiltration membrane or inorganic ceramic membrane: organic membrane ultrafiltration membrane cannot use strong acid, strong alkali or strong oxidant as cleaning agent to restore its flux; Ceramic membrane to strong acid, strong alkali or strong oxidant has extremely strong stability, can use chemical cleaning agent, organic solvent or high heat steam to remove pollutants in the membrane, filter membrane long service life, low operating cost. Note: For detailed technical solutions, please contact your sales engineer.
Dairy Products Filtration
With the rapid development of economy and the change of people's living and eating habits, the production, supply and sales of dairy products show a rapid growth trend, and the market competition is increasingly fierce. The filtration and separation, degreasing, concentration, sterilization and other processes of dairy products should meet the dual requirements of product safety and maintaining nutritional value.Hangzhou Dali has more than 20 years of experience in development and manufacturing and excellent technical service team to help customers cope with the consumption upgrade and product structure adjustment of dairy products. In 2008, China's dairy industry experienced the havoc caused by the melamine incident, which made the industry feel bitter and ushered in a vigorous reform. Today, a modern food manufacturing industry with the world's advanced level is unfolding in front of the world. China's raw milk, fresh milk quality and technical equipment of dairy processing enterprises have reached the world's advanced level.Milk is a paradise for microbial activity. The advanced filtration equipment and technology plays an indispensable role in the equipment upgrade, product quality stability and variety updating of the dairy industry. Application of main filter points and filter elements in production:1. Rough filtration of raw milk, whey and skim milk. The purpose is to remove large particles and other impurities to protect the downstream process. Recommended products: filter bag, replace the filter cartridge, stainless steel basket filter, stainless steel powder sintered or stainless steel mesh filter, absolute accuracy of 40,70,100 m.2. Filtration of process water. Coarse filtration, outlet \ activated carbon downstream \ ion exchange resin downstream. Filter element required: PP melt jet filter element, PP large flow filter element, etc., 2-3 m nominal accuracy, about 10 m absolute accuracy. Capture/clarification filtration, protection of the final filter element, filter element: PP folding, 0.2 m nominal accuracy, 1 m or so absolute accuracy.Use a Point of Use (POU) sterilizing grade membrane filter to reduce or remove bacteria from the water, as recommendedN66/ hydrophilic PVDF/PES 0.65/0.45/0.22 m, etc.3. Gas filtration. Process gas and ventilation sterilization filtration, particle removal prefiltration adopts PP folding filter core, 5-10 m nominal accuracy, 0.5-1 m absolute accuracy; A hydrophobic PTFE membrane 0.22 m filter element is selected for the removal of bacteria. The compressed air is used for the removal of oil and water. A gas/liquid coalayer filter element is recommended. High uniformity of blowing: recommended stainless steel powder sintered filter element.4. Control phage during dairy processing. A double layer hydrophobic PTFE 0.22 m membrane filter element is recommended.5. Add functional ingredients to dairy products, such as oligosaccharides, dietary fiber, minerals, etc. Membrane filter core, hydrophilic PVDF/PES 0.65/0.45/0.22 m, etc.6. CIP lye recovery. Recommended products, tangential flow ceramic membrane filter system or large flow PP melt jet filter core.7. Filtrate and recycle salt water. Remove impurities and denatured proteins from the brine and reuse the brine used to make cheese. Recommended product: Tangential flow organic microfiltration membrane.8. Other filtration applications, such as ceramic membrane microfiltration technology for milk sterilization, ultrafiltration for milk protein concentration, and nanofiltration for whey desalination, etc. Note: For detailed technical solutions, please contact your sales engineer.Example of milk processing technology
Cooking Oil Filtration
Hangzhou Dali's wool oil filtration and multi-stage precise edible oil filtration solutions solve the problems of soybean, peanut, rapeseed, castor oil and other machine-pressed wool oil in oil industry, such as difficult filtration and difficult residue discharge, especially suitable for decolorizing, polishing and filtering, clarifying and filtering, crystal filtration and other processes in oil production. nevinSoybean oil, peanut oil and sesame oil are the major oils in China, and their fatty acid compositions are mainly oleic acid and linoleic acid, which are the main edible oils for human beings. The content of free fatty acid is less than 2% in general, and can reach the quality of ordinary edible oil after crude refining. But will contain a very small amount of impurities, impurities, although less impact. To be filtered:Suspended impurities: sediment, embryo powder, cake residue; Moisture.Colloidal impurities: phospholipids, proteins, sugars and lower decomposition products;Lipid-soluble impurities: free fatty acids, sterols, tocopherols, pigments, fatty alcohols, waxes;Other impurities: toxins, pesticides.Main filter points:A plate and frame edible oil filter is used to deal with a large amount of impurities and dregs in the oil.In the refining process of edible oil, a lot of activated carbon, acetone and clay will be used as filter AIDS, decoloring and deodorizing precipitation, etc. These substances will inevitably flow into the downstream oil products. High efficiency filter bag, filtering accuracy can reach 0.5 m, can lay these fine particles. Note: For detailed technical solutions, please contact your sales engineer.Refined edible oil processing Technology:
Juice -In the production of fruit juice, the retention of flavor and nutrition is the bottleneck restricting the development of the industry. Membrane filtration process is carried out at room temperature with mild filtration, which helps to retain the original taste of raw materials and remove bacteria, spores, colloid and peculiar smell and bitterness, etc. It is a promising sterilizing and clarifying technology for juice drinks. Because the raw materials contain products that block the filter material, Dahli hangzhou has rich experience in selecting appropriate filter products. Fruit juice is a fermentable but unfermented juice or serous product made from fruits or vegetables using physical methods (mechanical methods, water extraction, etc.). Or in concentrated fruit juice (pulp) added to the same amount of water removed during processing to restore the juice, slurry products. The membrane filtration process is carried out at room temperature, does not involve heating process, and does not change the flavor and nutritional ingredients of the product, especially the heat-sensitive ingredients, making it an excellent choice for fruit juice and its drinks. Main filtration process points in the production of fruit juice and its beverages:Water filtration: specific applications: water for products, CIP water, equipment cleaning water, aseptic filling water, etc. Filtering requirements vary from application to application.Coarse filter for the removal of large mechanical particles such as sand, PP melt jet/fold filter core, 40-70 m absolute accuracy;Activated carbon particle capture filtration, PP melt jet/fold filter core, 20 m absolute accuracy;Ion-exchange resin capture filter, PP melt jet/fold filter core, 5 m absolute accuracy;For filtration before entering the clear water tank, PP melt jet/fold filter core, GF fold filter core, 2 m absolute accuracy;Water sterilizing/reducing filtration, PES/N66/ hydrophilic PVDF membrane filter core, 0.22/0.45 m, can be verified by bacterial challenge test for integrity test.Gas filtration (air, nitrogen, carbon dioxide) :Prefiltration of gases: Protects the rear sterilizing filter. PP folding filter element is recommended, with 10 m absolute accuracy, up to 1 m for gas filtration.Tank ventilation and ventilation; Sterile gas transfer materials, etcThe hydrophobic PTFE membrane filter element is recommended, with a precision of 0.22 m and a gas filtration accuracy of up to 0.01 m. The integrity test can be carried out after being verified by bacterial challenge test.Respiratory port filtration of sterile storage tank:The hydrophobic PTFE membrane filter element is recommended, with a precision of 0.22 m and a gas filtration accuracy of up to 0.01 m. The integrity test can be carried out after being verified by bacterial challenge test.Aeration filtration in liquid:Filter purpose: To remove particles and high diffusion, high uniformity of inflation, recommended stainless steel powder sintered filter core, 10 m absolute accuracy, filtering gas up to 1 m.Steam filtration:Specific applications: steam for heat exchange equipment, steam for high temperature sterilization, steam in direct contact with food, etc.Recommended stainless steel powder sintered filter element or stainless steel mesh filter element, 10 m absolute accuracy, filtering steam up to 1 m.Clarification and sterilizing of juice:Traditional technology: coarse filter/various diatomite filters; Fine filtration and degerming filtration: deep cardboard filter, or deep cardboard filter stack.The current new process recommends the tangential flow ultrafiltration step to achieve the purpose of coarse filtration, fine filtration and sterilization. The product has hollow fiber organic ultrafiltration membrane or inorganic ceramic membrane.Organic membrane ultrafiltration membrane, can not be used after the use of strong acid, alkali or strong oxidant as a cleaning agent to restore its flux.Ceramic membrane to strong acid, strong alkali or strong oxidant has extremely strong stability, can use chemical cleaning agent, organic solvent or high heat steam to remove pollutants in the membrane, filter membrane long service life, low operating cost. Note: For detailed technical solutions, please contact your sales engineer.
Fructose Syrup Filtration
Fructose syrupHigh fructose corn syrup is an important natural sweetener, and its functionality and economy make it an ideal substitute for granulated sugar. During the production process of HFCS, temperature, viscosity, density and so on have higher requirements on the precision, strength, filtration efficiency and reuse of filtration materials. Syrup from the variety of products and impurities in the process of production the whole filtration process involves clarifying protection filter, remove the insoluble protein, mechanical impurity, activated carbon capture and eventually eliminate bacterium, hangzhou big set according to the requirements of fructose syrup each process point design the most appropriate filtering solution for your product to achieve the best filtering effect, while keeping the economy. High fructose corn syrup (HFCS), a new product developed in the 1970s, is an important sweetener. It is a kind of mixed syrup made from starch in rice, corn and potato, which is liquefied by -amylase, hydrolyzed by glycosylase and converted into glucose, and then isomerized by glucose isomerase. It is mainly composed of fructose and glucose.Fructose syrup has high temperature, high sugar content and certain viscosity in the production process. The accuracy and efficiency of filtration materials, product strength and recoverability of filtration performance are the keys to the success of filtration process. Application of main filter points and filter elements in fructose syrup production:1. Steam filtration by jet heating: saturated steam temperature is 107℃, and mechanical impurities such as particles, rust, welding slag and so on are removed to ensure uniform steam injection and high dispersity. It is recommended to use stainless steel powder sintered filter element with absolute accuracy of 10 m and filtration of saturated steam up to 1 m.2. Clarification of glucose syrup after saccharification: the sugar liquid temperature is 60-75℃, the viscosity is 1-2CP, and the impurities such as fiber, soluble protein, colloid, impurity polysaccharide, and sub-micron particles need to be removed. Ceramic membrane filtration is recommended.3, decolorization filter: reduce the product color, improve flavor, remove odor, make the product clear and transparent. Conventional use of activated carbon particles or powder for decolorization, and capture of activated carbon particles filtration process, such as deep board, filter core or filter bag, or direct use of activated carbon containing deep board filter stack or filter core to achieve the effect of filtration and decolorization.4. Polishing filtration after evaporation: the temperature is 60-80℃, the viscosity is less than 10cP, the carbonized particles are removed, and the non-coagulated protein produced during evaporation is reduced to reduce the microbial load. Deep board filter stack is recommended.5. After polishing and filtration, the temperature of TAB (Thermo Acidophilic Bacteria) was 60-80℃, and the viscosity was less than 10cP. To remove TAB and reduce other microbial loads, PES/ hydrophilic PVDF membrane filter element (0.45 m) is recommended.6. Finished syrup storage tank breathing mouth filter to ensure the cleanness and microbial safety of syrup: stainless steel filter case + hydrophobic PTFE filter membrane 0.22 m filter element is recommended7. Security filtration before loading, temperature greater than 60℃, viscosity of 10cP -- hundreds of cP. Removal of visible particulate impurities: PP filter bag or filter core can replace the filter bag is recommended, 40 -- 70 m absolute accuracy. Note: For detailed technical solutions, please contact your sales engineer.Fructose syrup production process:
Fruit Wine Filtration
Good fruit wine, wine should be clear, transparent, no sediment and suspended matter, give a person a sense of clarity, color is also the juice of the special pigment and aroma. The membrane filtration process is carried out at room temperature, and the pure physical method is used for filtration. There is no qualitative change in the separation process, and bacteria, impurities, extracts and harmful substances can be removed from the process. The fine degree of filtration determines the quality of the liquor. Hangzhou Dali helps customers to find the most suitable filtration solution through verification and other tests conducted by its laboratories. Fruit wine is fermented by yeast into alcohol with the sugar of the fruit itself. It has pure, elegant, pleasant, harmonious aroma and wine. It is sweet and sour and full bodied.There are many kinds of fruits in Our country, many fruits can brew fruit wine, especially plums, apples, kiwifruit, bayberries and other varieties in the wine brewing accounted for a larger proportion. At present, commercial production of a wide variety of wine, according to brewing methods and product characteristics, divided into fermentation wine, distilled wine, prepared wine, sparkling wine.Generally, certain amount of SO2 and pectinase powder should be added in time when apple and other fruit juices enter the fermentation tank, and separation should be carried out before fermentation occurs, so as to reduce the content of impurities in fruit juice to the minimum level, which can avoid the influence of impurities on the taste quality of fruit juice. Major filtering applications in wine making:1. Clarification and filtration: generally, diatomite filter and paperboard are used for filtration, or the tangential flow filtration system of hollow fiber is adopted.2. Recovery of fruit wine: solid-liquid separation system, such as plate and frame filter press, is adopted.3. Pre-filtration before bottling: PP or GF folding filter element, 0.2-0.45 m nominal accuracy, 1 ~ 2 m absolute accuracy.4. Sterilizing filtration before bottling: PES/N66/PVDF membrane filter element, 0.45 ~ 0.65 m.5. Process and bottle washing water filtration: PP large-flow folding filter element with 40 m absolute accuracy, PP folding /GF folding/N66 film/hydrophilic PVDF film /PES film filter element with 0.45 ~ 1.5 m absolute accuracy.6. Sterilization and filtration of process gas: hydrophobic PTFE membrane filter core, 0.22 m, up to 0.01 m in gas. Note: For detailed technical solutions, please contact your sales engineer.Wine brewing technology:
Packing Water Filtration
Water -- an indispensable nutrient for human beings, water in reality is undrinkable due to various external factors. In order to meet healthy drinking standards, water needs to be extremely filtration intensive while retaining beneficial mineral elements. Water quality varies greatly from region to region. Hangzhou Dali provides efficient and economical solutions based on field water quality to better meet the needs of enterprise reality and development. In China, the main packaging aquatic products on the market: drinking pure water, distilled water, drinking natural spring water, drinking mineral water, drinking natural water.The process of each product is slightly different. The production process of packaging drinking water, especially drinking mineral water, is relatively simple. In order to ensure the mineral content, reverse osmosis technology is generally not used.GB 19298-2014 and GB8537-2018, the national Food Safety Standard for Drinking Natural Mineral Water, are the main standards in the industry, which have strict requirements on microorganisms and added indexes of Pseudomonas Aeruginosa.Pseudomonas aeruginosa may enter the finished water through a defective filter, so it is very important to select a high efficient and reliable terminal sterilizing filter to ensure the quality of finished water.For the filter element with microorganism level removed, the bacteria challenge test must be carried out with the international standard bacteria species according to the international standard method and procedure, and the integrity test standard value of the filter element in use must be determined. Hangzhou Dali laboratory has a strict verification test to ensure that the filter element will completely retain the harmful microorganisms such as pseudomonas aeruginosa in the final filtration.Main filter points and recommended filter elements of bottled water process:1. Coarse filtration - particle removal filter element: Application point: outlet \ downstream of activated carbon \ ion exchange resin. Recommended filter element: PP molten spray, 2-3 m nominal accuracy, 10 m or so absolute accuracy.2. Fine filter core: suitable for mineral water/purified water to protect the final filter core; Remove 0.5 m-2.0 m particles and other pollutants; Reduce microbial populations. Recommended filter element: PP folding, 0.2 m nominal accuracy, 1 m or so absolute accuracy.3. Security filter element before RO reverse osmosis: PP melting spray, nominal precision of 5 m, absolute precision of 20 m or so, to remove particles, colloid and other impurities in the water, and meet the requirements of reverse osmosis membrane water intake SDI less than 5.4. Final filter element: applicable to bottled water such as mineral water and purified water; Removal of microorganisms that cause degeneration of water quality and are harmful to human health; Recommended filter element: 0.22 m/0.45 m PES/N66/PVDF microbial grade sterilizing filter element.5. Breathing port filter for pure water storage tank: Recommended filter element: stainless steel shell +PTFE 0.22 m filter element.6. CIP filter: Recommended filter element: stainless steel shell +PP melting spray /PP folding /GF folding filter element with 2-3 m nominal precision and 10 m absolute precision.Note: For detailed technical solutions, please contact your sales engineer.Examples of pure water production process: Examples of drinking mineral water production process: