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Processing process for fermentation waste liquid of lysine

A technology of lysine fermentation and waste liquid, used in water/sewage treatment, aerobic process treatment, natural water treatment and other directions

Active Publication Date: 2013-01-16
CHANGCHUN DACHENG INDAL GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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

Method used

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  • Processing process for fermentation waste liquid of lysine

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Embodiment

[0059] Example Treatment and Comprehensive Utilization of Lysine Fermentation Waste Liquid

[0060] In this embodiment, the lysine fermentation waste liquid is treated according to the method of the present invention, and the steps and process are as attached figure 1 shown.

[0061] Treatment of Lysine Wastewater

[0062] 1. Concentration of lysine wastewater: 300m 3 The lysine fermentation waste liquid is evaporated by four effects, and the evaporation conditions of each effect are: first effect: 0.04Mpa, 99~102℃; second effect: 0.06Mpa, 88~92℃; third effect: 0.08Mpa, 75~78℃ ;Four effects: 0.9Mpa, 60~62℃. The solid content of the evaporated material is about 60%, and the concentrated solution is 40m 3 , the condensed water is 260m 3 , the condensed water enters the aerobic treatment system for conventional biochemical treatment to obtain clean water that meets the biochemical treatment standards.

[0063] 2. Ammonium sulfate crystallization: the concentrated lysin...

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Abstract

A treatment method for fermentation spent liquor from lysine production is provided, which comprises the following steps: reduced pressure concentrating the fermentation spent liquor from lysine production, crystallizing the concentrated liquor, separating the crystals using centrifugation to get (NH4)2SO4, and spraying slurry to be granulated. The granular composite fertilizer comprising many kinds of amino acid is obtained. The method also comprises washing, dedusting and electrostatic treating the exhaust gas from the process of spraying slurry, and aerobic biological treating the water from every step.

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. [0002] Background technique [0003] 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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/58C02F1/38C05C3/00C02F3/02B01D53/75
CPCC02F1/04C05F5/008B01D1/18C02F3/00C02F2103/36C02F2301/063C02F1/38C02F9/00Y02A40/20
Inventor 王德辉贾冬舒
Owner CHANGCHUN DACHENG INDAL GROUP