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Method for treating high salinity and high consistency industrial wastewater to realize waste control by waste

A technology for industrial waste water and waste treatment, which is applied in energy waste water treatment, water/sewage treatment, general water supply conservation, etc. It can solve the problems of not being able to ensure the low operating cost of waste water and meet the discharge standards, so as to improve the biochemical performance and BC ratio, detoxification effect

Inactive Publication Date: 2012-01-11
SHANGHAI MEIJING ENVIRONMENTAL PROTECTION ENG
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0003] Therefore, the technical problem to be solved in the present invention is to provide a method for treating high-salt and high-concentration industrial wastewater for the treatment method of industrial wastewater with high COD, high salinity and high toxicity, which cannot ensure the discharge of wastewater with low operating cost. It can make the three-high wastewater reach the standard discharge with waste treatment and low operation cost

Method used

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  • Method for treating high salinity and high consistency industrial wastewater to realize waste control by waste
  • Method for treating high salinity and high consistency industrial wastewater to realize waste control by waste
  • Method for treating high salinity and high consistency industrial wastewater to realize waste control by waste

Examples

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Effect test

Embodiment 1

[0038] In this example, the waste water of pharmaceutical intermediates and fine chemical industry, which have high concentration of organic pollutants, high salinity, high ammonia nitrogen, and complex pollutant components, are difficult to treat, and adopt MVR evaporation process, three-dimensional overpotential electrolysis, and high-efficiency composite bacteria. The biochemical process treats and collects the biogas for power generation to feed the above mentioned processes.

[0039] (1) Processing objects:

[0040] The treatment object is the production wastewater from the workshop of a chemical company in Shanghai, including: high-salt wastewater (QCC64, KC190, DBC80), low-salt wastewater (QCC64, KC190, DBC80), other wastewater, their water quality is shown in the table 1. These wastewaters are composed of different production wastewaters, as shown in Table 2 and 3 for details.

[0041] Table 1. Water Quality and Quantity of Treated Wastewater

[0042]

[0043] Ta...

Embodiment 2

[0060] 1 Overview

[0061] A pilot test was carried out on the pesticide wastewater of a Jiangsu Green Chemical Co., Ltd.

[0062] 2.1 Test water quality

[0063] The specific water quality of pesticide wastewater is shown in Table 5.

[0064] Table 5. Water quality of pesticide wastewater

[0065]

[0066] 2.2 Test device and scale

[0067] One set of evaporation device, with a processing capacity of 4L per batch; one set of partial dissolved air flotation device, with a processing capacity of 5L per batch; one set of overpotential three-dimensional electrolysis device (patented by Meijing), with a processing capacity of 10L / h; one oxygen tank , with an effective volume of 10L; 1 aerobic tank with an effective volume of 10L; Meijing high-efficiency compound microbial strains 8L (Meijing patent).

[0068] 2.3 Process flow and description

[0069] Suggestions on the process flow of pesticide wastewater treatment Figure 4 .

[0070] This experiment is mainly aimed at ...

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Abstract

The invention discloses a method for treating high salinity and high consistency industrial wastewater to realize waste control by waste. The method comprises the following steps: (1) desalination treatment on the high salinity and high consistency industrial wastewater by using the process of mechanical vapor recompression (MVR); (2) three dimensional potential electrolysis treatment on treated wastewater obtained in step (1); (3) compound bacteria anaerobic, facultative aerobic and aerobic treatment on treated wastewater obtained in step (2) by using a high efficiency compound bacteria biochemical process; (4) collection of methane gas produced in anaerobism for generating power which is reused for a wastewater treating apparatus. According to the invention, four processes are combined, which enables treatment and standard discharge of high salinity, high consistency and high difficulty organic wastewater to be actually realized; therefore, treatment of three-high wastewater advances along a sunny path of circular economy by treating the waste with the waste and turning the waste into resources.

Description

technical field [0001] The invention belongs to the field of environmental protection, and in particular relates to a method for treating high-salt and high-concentration industrial wastewater to treat waste. Background technique [0002] At present, the production wastewater produced in the production process of the chemical industry has the characteristics of high COD, high salinity, and high toxicity. Common chemical wastewater treatment methods cannot ensure the low operating cost of wastewater and meet the discharge standards. Contents of the invention [0003] Therefore, the technical problem to be solved in the present invention is to provide a method for treating high-salt and high-concentration industrial wastewater for the treatment method of industrial wastewater with high COD, high salinity and high toxicity, which cannot ensure the discharge of wastewater with low operating cost. It can make the three-high wastewater reach the standard discharge with waste tre...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F1/461C02F1/04C02F3/30C02F3/34C02F1/24
CPCY02A20/124Y02W10/37
Inventor 严青胡幸福郭栋
Owner SHANGHAI MEIJING ENVIRONMENTAL PROTECTION ENG
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