System and method for respectively recovering fermented industrial waste water according to quality

Abstract

The invention discloses a system and a method for respectively recovering fermented industrial waste water according to the quality. Outlet water after secondary biochemical treatment of fermented industrial waste water firstly enters an electro-catalysis and oxidation reactor for treatment; then the outlet water of the reaction enters from a water distributor at the bottom of an integrated bioreactor, flows from the bottom up and is sequentially treated by anaerobic biological treatment, anoxic biological treatment and aerobic biological treatment, and outlet water can be used as the environmental water of appreciated landscapes after the outlet water is disinfected; then the outlet water enters a microfiltration device for treatment, and the outlet water of the microfiltration device can be used as the environmental water of entertainment landscapes; then the outlet water enters a nanofiltration device for treatment, and the outlet water of the nanofiltration device can be used as hybrid water of cities; and finally, the outlet water enters a reverse osmosis device for treatment, and the outlet water of the reverse osmosis device can be used as industrial water. The method is reasonable and feasible, the quality of the outlet water of each workshop section is good, and the operation cost is low. Devices in the invention are easy to modularize, standardize and integrate, thusthe invention has technical and economic rationality and feasibility in the field of respective recovery of the fermented industrial waste water according to the quality and is suitable for generalization and application.

Description

Technical field [0001] The invention relates to a system and method for recycling industrial waste water, and more specifically to a system and method for reusing the effluent of fermentation industrial waste water after anaerobic and aerobic secondary biochemical treatment. Background technique [0002] Vigorously promoting industrial water conservation and improving industrial water efficiency is the fundamental way to alleviate the contradiction between my country's water supply and demand. At the same time, it can reduce wastewater discharge, protect the water environment, and promote the sustainable development of my country's social economy. my country’s fermentation industry is developed. The level and scale of yeast, alcohol, citric acid, beer, vitamin C, and MSG are among the top in the world. It is one of my country’s important pillar industries. However, the amount of water taken and wastewater discharge during the production process is huge. Therefore, it has great pot...

AI Technical Summary

Problems solved by technology

However, the integrated reactors currently researched and developed are mostly used to treat high-concentration industrial wastewater that is easy to biodegrade, or to treat small-to-medium-scale domestic sewage and a small number of small-scale industrial wastewater with relatively stable properties and low-to-medium concentrations, with emphasis on COD And the removal of nitrogen, and the start-up time is long, there is a lot of excess sludge, but in the field of advanced treatment of fermentation industrial wastewater, there is no such thing as strong pertinence, fast start-up, easy domestication, short residence time, and less amount of excess sludge. Development and application of integrated bioreactor

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