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Treatment method of cellulose fuel ethanol waste water

A fuel ethanol wastewater treatment method technology, applied in the field of water treatment, can solve the problems of polluting groundwater, land quality and environmental threats, destroying soil structure, etc., and achieve the effect of avoiding pollution

Inactive Publication Date: 2016-10-12
无锡市华东电力设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the treatment methods of fuel ethanol wastewater mainly include: storage direct discharge or farmland irrigation method, but this method will pose potential threats to land quality and environment, pollute groundwater, and damage soil structure

Method used

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Embodiment Construction

[0010] A method for treating cellulose fuel ethanol wastewater, which comprises the following steps: (1) pretreatment: remove suspended solids in wastewater; (2) micro-electrolyze wastewater; (3) anaerobic reaction: micro-electrolyze (4) Aerobic reaction: Put the waste water after the above reaction into the good sample reactor for reaction; (5) Check whether the indicators meet the discharge standards.

[0011] The present invention will be further described below in conjunction with embodiment.

[0012] Analytical pretreatment methods: natural sedimentation takes a long time and is inefficient, but has no energy consumption; centrifugal separation and plate-and-frame filtration are highly efficient, but both require energy, and the efficiency of plate-and-frame filtration is higher than that of centrifugal separation. Considering comprehensively, in order to achieve higher efficiency, the method of plate and frame filter press is used for pretreatment of cellulose fuel ethan...

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Abstract

The invention relates to a treatment method of cellulose fuel ethanol waste water. The method comprises the following steps that 1, suspended solids in the waste water are removed; 2, the waste water is subjected to microelectrolysis; 3, the waste water subjected to microelectrolysis is injected into an anaerobic reactor for reaction; 4, the reacted waste water is injected into an aerobic reactor for reaction; 5, whether all indexes meet the emission standard or not is detected. Preferably, the pretreatment method comprises the step of natural settling or centrifugal separation or plate-frame pressure filtration; preferably, equipment adopted by the microelectrolysis process is fixed-type microelectrolysis equipment; preferably, the anaerobic reactor is a UASB or an EGSB or an IC or a CSTR; preferably, the aerobic reactor is a SBR or a CASS. The treatment method of the cellulose fuel ethanol waste water has the advantages that the cellulose fuel ethanol waste water is treated to meet the emission standard by means of the steps of pretreatment, microelectrolysis, anaerobic reaction and aerobic reaction, and pollution, caused by direct discharging of stored waste water or farmland irrigation, to the environment is avoided.

Description

[0001] The invention relates to water treatment technology, in particular to a treatment method for cellulose fuel ethanol wastewater. Background technique [0002] Energy shortage is one of the major issues that the world needs to face. As an important industrial raw material and vehicle fuel, fuel ethanol has a higher octane number and lower CO2 emissions than gasoline, and is widely considered to be the most promising renewable energy that can fully or partially replace petroleum. The rapidly growing demand for fuel ethanol has gradually drawn attention to the preparation of fuel ethanol from cellulose materials. [0003] Cellulose fuel ethanol wastewater has the characteristics of high concentration of CODCr (chemical oxygen demand measured by potassium dichromate as an oxidant), high concentration of suspended solids, high chroma, and high salt content. It is acidic and difficult to treat. High concentration organic wastewater. At present, the treatment methods of fuel ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F103/36
CPCC02F9/00C02F1/001C02F1/461C02F3/12C02F3/1263C02F3/28C02F3/2846C02F2001/007C02F2103/36
Inventor 丁建峰
Owner 无锡市华东电力设备有限公司