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A kind of additive wastewater treatment process

A technology for wastewater treatment and additives, which is used in water/sewage multi-stage treatment, oxidized water/sewage treatment, special compound water treatment, etc., and can solve problems such as dependence

Active Publication Date: 2022-03-22
福泉环保城发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the performance of wet oxidation depends heavily on the catalytic performance of the catalyst. The auxiliary wastewater contains unique biochemical substances. At present, there is no high-efficiency catalyst for the tubular free radical oxidation of auxiliary wastewater, so it is urgent to research and develop A catalyst for tubular free radical oxidation of auxiliary wastewater

Method used

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  • A kind of additive wastewater treatment process
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Experimental program
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Effect test

Embodiment 1

[0034] like figure 1 As shown, it is a tubular continuous reaction device of the present invention, and the device includes a filter 1, a sewage buffer tank 2, a sewage pump 3, a free radical generator 4, an air compressor 5, an air buffer tank 6, and an air flow meter 7 , heat exchanger 8, high-pressure separation tank 9, liquid storage tank 10, the air compressor 5 is connected with the inlet of the air pressure buffer tank 6, and the air buffer tank 6 is connected with the free radical by the pipeline provided with the air flow meter 7 The generator 4 is connected, the filter 1 is connected with the sewage buffer tank 2 through pipelines, the sewage buffer tank 2, the sewage pump 3 and the free radical generator 4 are connected in sequence, and the entrance of the free radical generator 4 is provided with a heat exchanger for 8 The reactor output stream and the feed stream exchange heat, and the outlet of the free radical generator 4 is connected to the high-pressure separa...

Embodiment 2

[0037] Preparation of Catalyst A:

[0038] 1) claim that 261g ruthenium chloride trihydrate is dissolved in 10L deionized water to form solution A;

[0039] 2) Weigh 1Kg of coconut shell activated carbon, place it in a muffle furnace at 100°C for high temperature activation for a period of time, and cool to room temperature to obtain activated carrier B;

[0040] 3) Add 500g of activated carrier B to 2L of solution A and soak for 5 hours, and filter to obtain catalyst precursor C;

[0041] 4) Precursor C was dried at 80° C. for 5 hours, and then calcined at 800° C. for 8 hours to obtain catalyst A. According to detection and analysis, the loading amount of ruthenium was 0.21 wt%.

Embodiment 3

[0043] Preparation of Catalyst B:

[0044] 1) Weigh 250g of manganese nitrate and dissolve it in 5L of deionized water, then add 150mL of 30% hydrogen peroxide, and react at 30°C for 1 hour to obtain reaction solution A;

[0045] 2) Add 1Kg ZSM-5 molecular sieve to the reaction solution A and soak for 5 hours, filter and dry to obtain catalyst precursor A;

[0046] 3) Dissolve 26g of cobalt chloride and 272g of zinc chloride in 5L of deionized water to obtain solution B, place precursor A in solution B and immerse for 5 hours to obtain catalytic precursor B;

[0047] 4) Dry the catalyst precursor B at 80°C for 3 hours, then put it into a muffle furnace, and calcinate it at 600°C for 8 hours to obtain catalyst B. After detection and analysis, the content of the catalyst active component Mn is 1.12wt %, the content of Co is 0.12wt%, and the content of zinc is 2.08wt%.

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Abstract

The invention provides a process for treating waste water with additives, which adopts a tubular continuous reaction device, and the device includes a filter, a sewage buffer tank, a sewage pump, a free radical generator, an air compressor, an air buffer tank, an air flow meter, a thermal The exchanger, high-pressure separation tank, and liquid storage tank control the flow of sewage by using composite catalysts and monitoring the concentration of sewage by setting sewage concentration detection devices, ensuring the tubular free radical oxidation effect of auxiliary wastewater, making it suitable for use in The catalytic effect can still be guaranteed when the concentration of additives fluctuates widely in wastewater. After 100 hours of continuous operation, the average removal rate of CODcr is above 95%, and BOD5 / CODcr>0.6 after treatment.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to an additive wastewater treatment process. Background technique [0002] Auxiliary wastewater is a kind of high-concentration refractory organic wastewater. High-concentration organic wastewater has the characteristics of high pollutant content, high toxicity, scattered discharge points, and low water volume. It will cause severe water pollution, deteriorate the ecological environment, and threaten human health. Physical treatment can be used as a pretreatment method for subsequent biochemical treatment to reduce suspended solids in water and reduce bioinhibitory substances in wastewater. The main components of wastewater are piperidone compounds, and the main characteristics of auxiliary wastewater are: high chroma, high COD, non-biochemical, and large changes in pollutant concentration. At present, the main treatment methods are incineration and physical treatment methods. The i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/04B01J23/46B01J29/48C02F101/30
CPCC02F1/001C02F1/72B01J23/462B01J29/48C02F2101/30C02F2305/023B01J2229/18
Inventor 周春松贾建洪余云丰
Owner 福泉环保城发展有限公司
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