Processing process for fermentation waste liquid of lysine

Abstract

The invention provides a method for treating waste liquor generated from lysine fermentation and solves the difficulty impeding the development of lysine production enterprises. The method comprises the primary technical process that the waste liquor goes through the process of concentration, crystallization, slurry-spraying granulation, washing for dedusting, electrostatic treatment, biochemicaltreatment, etc., and ammonium sulphate is reclaimed from the waste liquor as the raw material for fermentation, so as to obtain a compound fertilizer of high economic value; meanwhile, the treated wastewater and the treated exhaust gas reach national standard, thereby realizing the comprehensive utilization of the waste liquor generated from lysine fermentation. The invention further discloses equipment required for slurry-spraying granulation. The treatment of the waste liquor generated from lysine fermentation according to the technique and the equipment provided by the invention not only is favorable for environmental protection, but also turns the waste into the valuable, thus obtaining good economic and social benefits.

Description

technical field [0001] The invention relates to the technical field of treatment and / or reuse of industrial and agricultural production effluents. Specifically, the invention relates to amino acid fermentation, especially a method for the treatment and comprehensive utilization of fermentation waste liquid in the lysine fermentation industry. Background technique [0002] In recent years, the domestic amino acid fermentation industry has developed rapidly, especially lysine as an animal feed additive, which not only meets the domestic demand, but also is exported abroad. At the same time of economic development, it has also brought new problems-environmental pollution, and the discharge of fermentation waste liquid has caused great pollution to the environment. Although a lot of exploration and efforts have been made in this area, and certain results have been obtained, there are still problems such as large investment, unsatisfactory results or high operating costs. Many l...

AI Technical Summary

Problems solved by technology

Li Yuezhong, Liu Kanghuai [Li Yuezhong, Liu Kanghuai, high-load aerobic biological treatment of monosodium glutamate wastewater experimental research, 2001, 21 (1): 77 ~ 80] etc. adopted the HCR process (High Performance Compact Reactor) has achieved certain results in the treatment of glutamic acid fermentation waste liquid, but it is not ideal for the treatment of lysine fermentation waste liquid

Moreover, the power consumption of the HCR process is relatively large, and there is no link to generate benefits

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