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High-sludge industrial sewage treatment process

A technology for industrial sewage and treatment process, which is applied in water/sludge/sewage treatment, water/sewage treatment, water/sewage multi-stage treatment, etc. It can solve the requirements of many reaction conditions, complicated dosing and connection, and large consumption of medicine. and other problems, to achieve the effect of small residual solids, high phosphorus removal rate and low cost

Inactive Publication Date: 2015-01-07
CHUZHOU YOULIN TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the Fenton method device occupies a large area, the dosing and connection are complicated, the chemical consumption is large, and the chemical cost is high. After the reaction, the pH and precipitation need to be adjusted, and a lot of sludge and hazardous waste are likely to be generated. Many conditions are required, and the treatment effect is unstable, which limits the development of large-scale industrialization

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A process for treating high-sediment industrial sewage, comprising the steps of:

[0024] (1) Use the sewage pump to remove the coarse solid debris in the sewage through the grid, and then send the sewage into the grit chamber for sedimentation treatment;

[0025] (2) Add polyacrylamide to the sedimentation tank for precipitation. Polyacrylamide is anionic polyacrylamine. The amount of polyacrylamide is 8g per ton of sewage, and the precipitate is separated;

[0026] (3) Pass the sewage in step (2) through a high-frequency vibrating screen for further separation of sediment;

[0027] (4) Filter the sewage in step (3) again through a packing layer composed of cinders and pebbles;

[0028] (5) Discharge the settled sewage in the grit chamber to the anaerobic hydrolysis tank for anaerobic treatment. In the anaerobic zone, add carbon-containing nutrient solution, and the denitrifying bacteria in the sewage will reduce the nitrate nitrogen to nitrogen and discharge it;

[...

Embodiment 2

[0037] A process for treating high-sediment industrial sewage, comprising the steps of:

[0038] (1) Use the sewage pump to remove the coarse solid debris in the sewage through the grid, and then send the sewage into the grit chamber for sedimentation treatment;

[0039] (2) Add polyacrylamide to the sedimentation tank for precipitation. Polyacrylamide is anionic polyacrylamine. The amount of polyacrylamide is 9g per ton of sewage, and the precipitate is separated;

[0040] (3) Pass the sewage in step (2) through a high-frequency vibrating screen for further separation of sediment;

[0041] (4) Filter the sewage in step (3) again through a packing layer composed of cinders and pebbles;

[0042] (5) Discharge the settled sewage in the grit chamber to the anaerobic hydrolysis tank for anaerobic treatment. In the anaerobic zone, add carbon-containing nutrient solution, and the denitrifying bacteria in the sewage will reduce the nitrate nitrogen to nitrogen and discharge it;

[...

Embodiment 3

[0051] A process for treating high-sediment industrial sewage, comprising the steps of:

[0052] (1) Use the sewage pump to remove the coarse solid debris in the sewage through the grid, and then send the sewage into the grit chamber for sedimentation treatment;

[0053] (2) Add polyacrylamide to the sedimentation tank for precipitation. Polyacrylamide is anionic polyacrylamine. The amount of polyacrylamide is 10g of 1 ton of sewage, and the precipitate is separated;

[0054] (3) Pass the sewage in step (2) through a high-frequency vibrating screen for further separation of sediment;

[0055] (4) Filter the sewage in step (3) again through a packing layer composed of cinders and pebbles;

[0056] (5) Discharge the settled sewage in the grit chamber to the anaerobic hydrolysis tank for anaerobic treatment. In the anaerobic zone, add carbon-containing nutrient solution, and the denitrifying bacteria in the sewage will reduce the nitrate nitrogen to nitrogen and discharge it;

[...

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Abstract

The invention discloses a high-sludge industrial sewage treatment process which comprises the following steps: removing thick solid sundries in the sewage through grids, sending the sewage into a grit basin to settle, processing the sewage in an anaerobic zone, an aerobic zone and an anoxic zone, and then dephosphorizing and flocculating. The process is simple, the effect is good, the decolorization rate, the COD (carbon oxide demand) removal rate, the BOD (biochemical oxygen demand) removal rate and the phosphorus removal rate are high, the cost is low, and the popularization is facilitated.

Description

technical field [0001] The invention relates to a sewage treatment method, in particular to a high-silt industrial sewage treatment process. Background technique [0002] With the development of my country's industry, a large amount of industrial sewage and domestic sewage are produced, and the pollution impact on the environment is becoming more and more obvious. Among them, the difficult sewage discharged, such as chemical sewage, petrochemical sewage, coking sewage, landfill leachate, pharmaceutical sewage, electroplating cyanide-containing sewage, grinding sewage, etc., contains many refractory biodegradable organic substances and biological toxic substances, and the organic components are complex , COD concentration is high, and this type of sewage is very difficult to treat. In recent years, my country has done a lot of research and technological development in the field of difficult sewage treatment, but the corresponding environmental protection tasks are still ver...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F1/52C02F1/54C02F1/56
CPCC02F9/00C02F1/001C02F1/5236C02F1/5245C02F1/54C02F1/56C02F3/30
Inventor 王庆球刘健何晓春杨长春
Owner CHUZHOU YOULIN TECH DEV