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Basic dataStandard ID: HJ 2303-2018 (HJ2303-2018)Description (Translated English): Guideline on available technologies of pollution prevention and control for sugar industry Sector / Industry: Environmental Protection Industry Standard Word Count Estimation: 18,191 Date of Issue: 2018-12-29 Date of Implementation: 2019-03-01 Regulation (derived from): Ministry of Ecology and Environment Announcement No. 77 of 2018 Issuing agency(ies): Ministry of Ecology and Environment HJ 2303-2018: Guideline on available technologies of pollution prevention and control for sugar industry---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. Guideline on available technologies of pollution prevention and control for sugar industry National Environmental Protection Standard of the People's Republic Technical guide for feasible pollution control in sugar industry Guideline on available technologies of pollution prevention And control for sugar industry Published on.2018-12-29 2019-03-01 Implementation Release student Ministry of Ecology and Environment i directory Foreword...ii 1 Scope...1 2 Normative references...1 3 Terms and Definitions...1 4 Industry production and the generation of pollutants... 2 5 Possible technologies for pollution prevention and control...3 Appendix A (informative appendix) typical sugar production process and pollutant generation nodes...12 ForewordTo implement the Law of the People's Republic of China on Environmental Protection, the Law of the People's Republic of China on Water Pollution Prevention and Control, The Law on Pollution Prevention and Control, etc., to prevent and control environmental pollution, improve environmental quality, and promote technological progress in pollution prevention and control of the sugar industry, and develop this standard. This standard proposes a feasible technology for the prevention and treatment of wastewater, waste gas, solid waste and noise pollution in sugar industry. Appendix A of this standard is an informative annex. This standard is the first release. This standard is formulated by the Department of Science and Technology and the Department of Regulations and Standards of the Ministry of Ecology and Environment. This standard was drafted. China Academy of Environmental Sciences, Guangxi Zhuang Autonomous Region Environmental Protection Science Research Institute, China Light Industry Cleanup Production Center, COFCO Tunhe Sugar Industry Co., Ltd. This standard is approved by the Ministry of Ecology and Environment on December 29,.2018. This standard has been implemented since March 01,.2019. This standard is explained by the Ministry of Ecology and Environment.1 Technical guide for feasible pollution control in sugar industry1 Scope of applicationThis standard proposes a feasible technology for the prevention and control of waste gas, wastewater, solid waste and noise pollution in sugar industry enterprises. This standard can be used as an environmental impact assessment for sugar industry enterprises construction projects, national pollutant discharge standards revision, sewage permit management and Reference for the selection of pollution prevention technologies.2 Normative referencesThe contents of this standard refer to the following documents or their terms. GB 21909-2008 Water pollutant discharge standard for sugar industry3 Terms and definitionsThe following terms and definitions apply to this standard. 3.1 Cane sugar cane sugar The process of removing impurities and extracting finished sugar products containing high-purity sucrose by physical and chemical methods using sugar cane stems as raw materials. 3.2 Beet sugar beet sugar The process of removing impurities and extracting finished sugar products containing high-purity sucrose by physical and chemical methods using the roots of beets as raw materials. 3.3 feasible technologies of pollution prevention and control According to the environmental demand and economic level in a certain period of China, pollution prevention technology and pollution control technology are comprehensively adopted in the pollution prevention and control process. Surgery and environmental management measures to make pollutant emissions stable to meet the national sugar industry pollutant discharge standards, scale application technology. 3.4 Pressing milling The process of applying sugar to sugar cane or sugar cane by a press to extract the cane juice. 3.5 exudation diffusion A process in which sugar cane (or intermediate bagasse) or sucrose in beet silk is presented by water by dipping and dialysis. 23.6 extracting the juice The process of extracting sugar juice from a sugar material by pressing or exuding. 3.7 Clean purification The process of removing non-sucrose substances from the juice.4 Industry production and generation of pollutants4.1 Sugarcane sugar production and pollutant production 4.1.1 Sugarcane sugar production process. After the sugarcane is crushed and pretreated, the cane juice is extracted, and the non-sucrose substance is removed by the purification process and evaporated. Concentrated to a certain concentration of syrup, the syrup is further concentrated to precipitate sucrose crystals, and the crystals are adjusted by adjusting the appropriate temperature and supersaturation. Gradually increase to the required particle size, and finally use a centrifuge to separate the mother liquor from the crystal to obtain crystal sugar, then dry, sieve, finished sugar package Loading factory. 4.1.2 Waste water is mainly produced by processes such as purification, evaporation and crystallization of sugar, including washing water, washing cloth, etc. The main pollutants are chemical needs. Oxygen demand (CODCr), five-day biochemical oxygen demand (BOD5), suspended solids (SS), ammonia nitrogen, total nitrogen and total phosphorus, after treatment at the sewage treatment station emission. 4.1.3 The cooling water of the press bearing produced by the juice extraction process is directly recycled after cooling and cooling; it is produced by the evaporation and boiling sugar crystallization process. The condensed water is directly recycled after cooling and cooling, or recycled for other processes. 4.1.4 Exhaust gas is mainly produced by processes such as cleaning, lime loading and unloading, and feeding, including loading and unloading of exhaust gas, operating exhaust gas, lime gas, and machine waste. Gas, the main pollutant is particulate matter. Odors produced by sludge fermentation, bagasse fermentation, and sewage treatment stations are generally unorganized. 4.1.5 Solid waste is produced by the process of extracting juice, purifying and separating honey, including bagasse produced by the juice extraction process, filter sludge produced by the purification process, and honey separation. Molasses produced in the process, sludge generated from wastewater treatment, and the like. 4.1.6 Noise mainly comes from the operation of blowers, air compressors, pumps, steam turbine generator sets and other equipment. 4.2 Sugar beet production and pollutant production 4.2.1 Process of production of sugar beet. The beet is transported from the beet pulp to the workshop, and after being pretreated by removing impurities, washing, etc., the shreds are sent to the exudation device. The oozing juice is cleaned to remove non-sugar substances, and the purified sugar juice is decolorized by sulfur bleaching, and then sent to a multi-effect evaporator to be concentrated into syrup, and the syrup is passed through Boiled sugar, crystallized, honeydew, dried, sieved, finished sugar packaging factory. 4.2.2 Waste water is mainly produced by processes such as cleaning, evaporation and crystallization of sugar, mainly including washing water, washing cloth and so on. The main pollutant is CODCr, BOD5, SS, ammonia nitrogen, total nitrogen and total phosphorus are discharged after treatment at the sewage treatment station. 4.2.3 Washing water, flowing water and compressed water produced by the flow, washing and leaching processes are directly recycled after being treated; The condensed water produced in the crystallization process is directly recycled after being cooled and cooled, or recycled for other processes. 4.2.4 Exhaust gas is mainly produced by processes such as cleaning, lime loading and unloading, and feeding, including loading and unloading exhaust gas, operating exhaust gas, lime elimination machine and machine waste. Gas, the main pollutant is particulate matter. The odor generated by the sludge fermentation and sewage treatment stations is usually unorganized. 4.2.5 Solid waste is produced by processes such as exudation, purification, and honey separation, including beet pulp produced in the exudation process and filter sludge produced by the cleaning process. 3 points of molasses produced by the honey process, and sludge produced by wastewater treatment. 4.2.6 Noise mainly comes from the operation of blowers, air compressors, pumps, steam turbine generator sets and other equipment.5 Possible technologies for pollution prevention and control5.1 Pollution Prevention Technology 5.1.1 Sugarcane sugar pollution prevention technology 5.1.1.1 Press bearing cooling water circulation recycling technology Suitable for the juice extraction process. The crushing workshop is equipped with a grease separation sedimentation tank, and the bearing cooling water of the press is recycled after being separated by oil, sedimentation and cooling. Water recycling rate can reach more than 95%. This technology can improve water circulation utilization and reduce the amount of fresh water. 5.1.1.2 Filterless vacuum suction filtration technology It is suitable for the sugar removal process of sulfite process. Use a filterless vacuum suction filter instead of a filter cloth vacuum suction filter, using stainless steel mesh as The filter medium is used to achieve solid-liquid separation under vacuum. This technology does not use filter cloth, does not produce filter cloth water, can reduce the amount of fresh water by 30% Above, the organic pollution load of the washing cloth is reduced by 70% or more. 5.1.1.3 Spray atomization vacuum condensation technology Suitable for evaporation and sugar cooking. Improve the traditional condenser of the evaporation boiled sugar plant and increase it on the spray nozzle with jet suction function A spray nozzle with an atomizing condensation effect. This technology can increase the condensation efficiency of the condenser and reduce the amount of fresh water by more than 25%. 5.1.1.4 Condenser condensate recycling technology Suitable for evaporation and sugar cooking. The evaporation boiled sugar workshop is equipped with a circulating cooling tower and a cooling pool to condense the condenser of the evaporation and sugar cooking process. The water is cooled and cooled to be recycled or used as process water. Part of the condensed water can be directly returned to the production process without cooling, and the remaining condensed water passes through After cooling down, it will be recycled. This technology can increase the water recycling rate to over 95% and reduce the amount of fresh water. 5.1.2 Beet sugar pollution prevention technology 5.1.2.1 Flow washing water recycling technology Suitable for flow washing processes. After the flow washing process, a radial flow sedimentation tank is set, and the washing water (flowing water and washing water) is passed through the sedimentating mud. Recycling after the sand. This technology reduces the amount of fresh water replenished. The flow rate of the washing water can reach more than 60%, and the amount of washing water can be controlled at 5~7. t/t beet. 5.1.2.2 Spray atomization vacuum condensation technology Same as 5.1.1.3. 5.1.2.3 Vacuum pump diaphragm condensation technology Suitable for evaporation and sugar cooking. In the evaporation and sugar-smelting process, a dry countercurrent baffle condenser and a high-efficiency vacuum pump are used, and the separator is used. The Type 4 condenser condenses the steam into water and then pumps the non-condensable gas away with a high efficiency vacuum pump. The technology has better condensation effect and high vacuum and stability. Can reduce the amount of fresh water by more than 20%. 5.1.2.4 Condenser condensate recycling technology Same as 5.1.1.4. 5.1.2.5 Pressure water reuse technology Suitable for beet pulp pressing process. The pressurized water first enters the primary treatment tank for preliminary precipitation, removes the coarse impurities, and then the water The pump is driven into the swirling cleaner to further remove debris such as smashed slag, and the effluent and fresh effluent water are proportionally distributed to the bleeder through the metering device. Part of the fresh water. The yield of compressed water can reach 45%~65% of the amount of beet. The whole process is completely closed, and the reuse rate of compressed water can reach 100%. 5.2 Pollution Control Technology 5.2.1 Wastewater pollution control technology The wastewater produced by each production process of sugar production is collected and discharged into the sewage treatment station, and generally adopts the primary treatment secondary treatment technology to reach GB. 21909-2008 requirements. 5.2.1.1 Primary treatment technology The technology primarily removes suspended solids and sediment from sugar wastewater, including grids, conditioning tanks, and sedimentation tanks. Sugar waste water is removed by the grid After the floating object enters the regulation tank, it enters the sedimentation tank after adjusting the water quality and quantity in the adjustment tank, and removes the density by gravity natural settlement in the sedimentation tank. A suspension that is larger than the wastewater. The residence time of wastewater in the regulating tank can be determined according to the influent water quality and water quantity, and the effluent water quality needs to meet the follow-up two. Level processing stabilizes operational requirements. The sedimentation tank used in the primary treatment of sugar wastewater includes vertical flow, advection, radial flow and inclined tube (plate) sedimentation. In the pool, a radial flow sedimentation tank should be used when the amount of wastewater is large. The surface hydraulic load of the vertical flow, advection and radial flow sedimentation tanks of sugar wastewater is generally 1.5~3.0 m3/(m2·h), and the inclined tube (plate) sedimentation tank table The surface hydraulic load is generally 2.5~5.0 m3/(m2·h). Through precipitation, the removal rate of CODCr, BOD5, total nitrogen and total phosphorus in sugar wastewater is generally For 10% to 25%, the SS removal rate is generally 40% to 70%. 5.2.1.2 Secondary treatment technology This technology mainly removes organic matter from sugar wastewater, including anaerobic biological treatment technology and aerobic biological treatment technology. Anaerobic organism The treatment technology mainly includes hydrolysis acidification treatment technology and upflow anaerobic sludge bed treatment technology. Aerobic biological treatment technology mainly has conventional active sewage Mud method, sequencing batch activated sludge method, oxidation ditch, biological contact oxidation method and biological turntable method. When the CODCr concentration in the sugar wastewater is less than At 500 mg/L, the secondary treatment generally adopts aerobic biological treatment technology; when the CODCr concentration is 500~1500 mg/L, the secondary treatment is generally adopted. Hydrolytic acidification aerobic biological treatment technology; when the CODCr concentration is greater than 1500 mg/L, the secondary treatment generally adopts an upflow anaerobic sludge blanket Aerobic biological treatment technology. a) Anaerobic biological treatment technology 1) Hydrolysis acidification treatment technology The technology utilizes the action of anaerobic or facultative bacteria in the hydrolysis and acidification stages to hydrolyze insoluble macromolecular organics in the sugar wastewater to dissolve 5 organic matter, the removal rate of CODCr in sugar wastewater is not necessarily high, but can significantly improve the biodegradability of wastewater. When the influent CODCr concentration is 500~1500 mg/L and the hydraulic retention time is 3~6 h, the technology is used to treat the CODCr of sugar wastewater. The removal rate is 20%~40%, and the BOD5 removal rate is 20%~40%. 2) Upflow anaerobic sludge blanket The technology enables the high-concentration sugar-making wastewater to sequentially enter the sludge layer at the bottom of the sludge bed and the upper-middle sludge suspension zone through the water distribution device, in the sludge Under the action of anaerobic microorganisms in the bed, high-concentration organic waste is degraded to produce biogas, and CODCr and BOD5 in wastewater are greatly reduced. Continued aerobic biological treatment technology water requirements. The volumetric load of the upflow anaerobic sludge bed varies greatly at different temperatures, when the temperature is 35~40 °C The CODCr volume load is 5~10 kg/(m3·d), and the CODCr volume load is 3~5 kg/(m3·d) under normal temperature conditions. When the influent CODCr concentration is greater than 1500 mg/L, the influent BOD5/CODCr is greater than 0.3, and the SS content is less than 1000 mg/L, The removal rate of CODCr in the treatment of sugar wastewater can reach 80%~90%, the removal rate of BOD5 can reach 70%~80%, and the removal rate of SS can reach 30% to 50%. b) Aerobic biological treatment technology 1) Conventional activated sludge process The technology is suitable for treating low-concentration sugar-making wastewater with high purification degree and stability requirement, and the process is stable and the organic matter removal rate is high. Effectively remove organic pollutants from sugar wastewater. When the influent CODCr concentration is less than 500 mg/L, the sludge concentration in the wastewater is 2~4 g/L, and the hydraulic retention time is 6-20 h, The CODCr removal rate of the sugar treatment wastewater can reach 80%~90%, the removal rate of BOD5 can reach 70%~80%, and the SS removal rate is 30%~50%. 2) Sequencing batch activated sludge process The technology is suitable for treating sugar wastewater with large fluctuations in water quality and water volume, and can effectively remove organic pollutants in sugar wastewater, and has The best denitrification and dephosphorization effect, the main deformation process includes cyclic circulating activated sludge process, continuous and intermittent aeration process, and alternating Circulating activated sludge process, etc. When the influent CODCr concentration is less than 500 mg/L, the BOD5/CODCr is greater than 0.3, the sludge concentration is 3~5 g/L, and the hydraulic retention time is At 8~20 h, the removal rate of CODCr in this process can reach 80%~95%, and the removal rate of BOD5 can reach 80%~90%, SS The removal rate can reach 70%~90%, the ammonia nitrogen removal rate can reach 85%~95%, the total nitrogen removal rate can reach 60%~85%, and the total phosphorus removal rate can reach 50%~85%. 3) Oxidation ditch The technology has the advantages of stable treatment of sugar-making wastewater and strong impact load resistance, and can realize biological nitrogen removal. The main process includes a single-slot oxidation ditch, Double-slot oxidation ditch, three-slot oxidation ditch, vertical axis aerator oxidation ditch and concentric radial flow oxidation ditch, deformation process including integrated oxidation ditch, micro-hole Aeration oxidation ditch. When the influent CODCr is less than 500 mg/L, the BOD5/CODCr is greater than 0.3, the sludge concentration is 2~4.5 g/L, and the hydraulic retention time is 4~20. h, the CODCr removal rate of the sugar treatment wa......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of HJ 2303-2018_English be delivered?Answer: Upon your order, we will start to translate HJ 2303-2018_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of HJ 2303-2018_English with my colleagues?Answer: Yes. 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