Treating process of amino acid fermenting effluent

Abstract

Up to now, the perfect treatment of amino acid fermenting effluent has become the key for amino acid producing enterprise to develop, and the present invention is one perfect technological process of treating amino acid fermenting effluent. The technological process includes the main steps of concentrating, spraying slurry to pelletize, washing and dedusting, electrostatic treating, biochemical treating, etc. and converts the fermented effluent into valuable compound fertilizer, clean water and gas. For the first time, the technological process adopts a sweeping, catching and vapor chromatography-mass spectrometry method for determining the components of pelletizing tail gas identified as aerosol; develops electrostatic technology and apparatus for treating the slurry spraying second pelletizing tail gas; and develops the electrostatic treatment to enrich high concentration organic effluent.

Description

technical field [0001] The invention belongs to the technical field of reuse of industrial and agricultural production effluents, relates to amino acid fermentation and related industries, in particular to a waste liquid treatment process in the amino acid fermentation industry. Background technique [0002] At the same time of economic development, the pollution to the environment is increasing, especially in the amino acid fermentation industry, the pollution of fermentation waste liquid is even greater. Although a lot of exploration and efforts have been made in this regard, and many achievements have been made, it is still different from the current There is still a gap in the requirements for environmental protection, and there are still problems such as large investment, unsatisfactory results, or high operating costs [Xu Hanxiang. Sewage treatment in the monosodium glutamate industry [J]. Light Industry and Environmental Protection, 1996, 18(1): 33-37. Sun Zhenshi, Ch...

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Problems solved by technology

Li Yuezhong, Liu Kanghuai [Li Yuezhong, Liu Kanghuai. Experimental research on the treatment of monosodium glutamate wastewater by high-load aerobic biological method. 2001, 21 (1): 77-80] and others adopted the Institute of Phase Transport of Clausthal (Clausthal) University of Technology in Germany. The HCR process (High Performance Compact Reactor) invented in the 1980s [Lubbecke S, A Vogelpohl und WDewjanin. Wastewater treatment in a biological high-performance system with high biomassconcentration. Wat Res, 1995, 29(3): 793~802] processing valley Acidic acid fermentation waste liquid has achieved certain results, but the HCR process consumes a lot of power, has no link of production efficiency, high operating costs, and needs secondary biological treatment.

In recent years, Shandong Fufeng Fermentation Co., Ltd. and other enterprises have explored a better treatment method for amino acid waste liquid, concentrated spray granulation to produce compound fertilizer, and turned waste into treasure. However, new problems have emerged while solving old problems. The problem is that serious air pollution is generated during the spraying granulation process, and the entire factory area is covered by thick smoke and odor for several kilometers, making it impossible for the surrounding schools and residents to study and live normally; at the same time, it has brought serious economic losses to the enterprise. loss

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