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Harbin chrysanthemum MSG plant corn as raw materials, production of starch, glutamic acid, monosodium glutamate, while integrated production fiber feed, protein powder, germ. According to statistics, every production of 1 ton of MSG emissions by 15 to 20 tons of high concentrations of MSG wastewater processing a large number of high ammonia excess sludge generated in the process of monosodium glutamate wastewater, contains a lot of organic matter in these remaining sludge, sludge if not treatment and disposal of direct emissions impact on the environment caused serious pollution, and cause a lot of waste of resources. Up to 30000 to 40000 MSG wastewater COD, total nitrogen up to 1200mg / L, TOC higher than 8000mg / L, sulfate 15 to 55 mg / L, pH value is low, only about 3. Corn in Harbin chrysanthemum MSG production wastewater cleaning, purification of waste water and fermented liquid to extract glutamate waste mother liquor or ion exchange high concentrations of the two parts of the tail liquid organic nitrogen-containing wastewater directly discharged into the sewage treatment plant, after the two-phase anaerobic treatment There are a lot of ammonia generated not only follow-up treatment to increase the burden, as well as the lack of resource utilization, and the remaining sludge caused great harm to the environment. To that wastewater of monosodium glutamate production process emissions high concentrations of nitrogen-containing organic wastewater (including cleaning of raw materials, soak, purification and fermentation broth by extraction Valley chrysanthemum MSG factory in Harbin Spherodizing the compound fertilizer technological transformation of key processes the tail solution of two parts) mixed acid waste mother liquor or ion exchange, four-effect evaporator using steam evaporation concentrated modulation (add nutrients such as N, P, K) and the wastewater treatment plant emissions of ammonia remaining dirt The mud in conjunction fed into the spray granulation machine made of organic compound fertilizer granulation, drying. Indicators of the organic - inorganic compound fertilizer products reached the national standard, high organic matter content, heavy metal content is extremely low, and has broad market prospects, the project was formally put into production, the annual production of compound fertilizers of about 10 million tons, chrysanthemum monosodium glutamate factory is located in the Twin Cities and surrounding areas are the areas of agricultural production, can digest such compound fertilizer products, now mixed fertilizer priced at 650 yuan, deducting the cost of sewage treatment, and annual earnings by about 2 million, fixed assets investment of about 8.1 million, five years to recover the full investment, the benefits are substantial. Harbin chrysanthemum MSG factory high concentration organic wastewater residual sludge concentrated Spherodizing method of manufacturing compound fertilizer resources are harmless approach, no secondary pollution, not only can meet the requirements of organic produce - inorganic compound fertilizer products, create some economic benefits, but also to provide organic fertilizer for farmland, urban gardens, green, and also find a harm into the sewage treatment plant sludge treatment and disposal, waste reasonable way out of the treasure, to achieve the unity of the economic, social and environmental benefits. Paper mainly chrysanthemum MSG factory in Harbin shotcrete granulation of compound fertilizer process transformation design work, including process design, process equipment, calculation and selection and optimization, etc., and determine the appropriate run technical parameters, but the economic and technical analysis, is certainly a process to establish a demonstration project to assess the economic and environmental social benefits of such a process, the economic value of such a compound fertilizer products with high concentrations of nitrogen-containing organic waste industry resource. This paper the use of new technology to solve the problem of environmental protection in the the MSG production in the comprehensive utilization of waste. The introduction of cleaner production, waste minimization, resource recovery. To energy conservation, energy, pollution reduction target, as a means of technology management, through the sewage audit of the whole process of production, screening, and implementation of pollution control measures to eliminate and reduce the impact of MSG production on human health and ecological environment, reduce marginal internal cost and marginal external costs. So as to achieve the prevention and control of industrial pollution, improve the dual goals of economic efficiency, and promote China's MSG industry towards new heights.
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