Method for treating coking wastewater

A coking wastewater and treatment method technology, applied in the direction of gaseous effluent wastewater treatment, multi-stage water treatment, water/sewage treatment, etc., can solve the problems of unstable operation of the device, high yield of concentrated liquid, difficult final treatment, etc., to achieve Low operating cost, short process, effective improvement of tail water quality

Active Publication Date: 2015-01-21
LIUZHOU IRON & STEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

In this new technology, there are two main benefits that make them better than previous methods such as adding chemical agents or filtering techniques. These improvements help reduce harmful substances like chlorine gas emissions (CO2) and heavy metals released during coal-fired power generation processes. Additionally, they improve the performance of filtrations systems due to their ability to block up certain particles while allowing fluid passes freely without being trapped inside these filters. Overall, these technologies enhance environmental protection measures and provide more efficient utilization of resources.

Problems solved by technology

This patented technical problem addressed by this patents relates to treating highly contaminating or reactive liquids generated during coal production processings due to various factors like heavy metals (Cd), bacterial growth, sulfur compounds, hydrocarbons, phosphorus, arsenite) which can be detrimental when released into water bodies without being removed effectively through conventional methods. Existing technologies involve expensive operations involving complicated steps, long periods of time, and low yields.

Method used

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  • Method for treating coking wastewater
  • Method for treating coking wastewater

Examples

Experimental program
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Effect test

Embodiment 1

[0017] Such as figure 1 The coking wastewater treatment system shown includes a water separator 1, the bottom of which is connected to an inclined tube sedimentation tank 2 through a pipeline, and one side of the inclined tube sedimentation tank is connected to a desorption liquid pool 8 and a sludge pool 7, and the other There is an upper column liquid pool 3 on one side, and the inclined tube sedimentation tank 2 is respectively a sludge collection bucket 201, a buffer zone 202, an inclined tube filling area 203, and a water collection area 204 from bottom to top. The bottom of the sludge collection bucket 201 passes through the sludge pump 701 communicates with the sludge tank 7, and the side of the water collection area 204 on the top of the inclined tube sedimentation tank is provided with an opening to communicate with the upper column liquid pool 3; the upper column liquid pool 3 communicates with the shallow sand filter group 4 through the upper column liquid pump 301 , t

Embodiment 2

[0019] In this example, the waste water flow rate is 290 m 3 / h, the resin adsorption time is 100h, the concentration of hydrochloric acid desorbing agent is 2%, the concentration of sodium hydroxide desorbing agent is 6%; all the other are the same as embodiment 1.

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Abstract

The invention discloses a method for treating coking wastewater, and relates to the technical field of coking wastewater treatment. A coking wastewater treatment system is adopted for treating, the wastewater treated by the coking biochemical system is pumped into a water distributor, the wastewater is injected into the bottom of an inclined-tube sedimentation tank by the water distributor, the wastewater is blocked by an inclined-tube packing zone in the rising process, the wastewater is discharged from the top of the inclined-tube sedimentation tank after part of suspended matters are removed to enter an upper column liquid tank, the wastewater is pumped to a shallow sand filter group by an upper column liquid pump and filtered and then enters a resin adsorption tower, the wastewater is adsorbed by resin and then the effluent flows into a tail water tank from the tower bottom. By adopting the method, the intercepting efficiency of chroma, COD and total cyanides is high, the yield of concentrated pollutants is low, the water quality stability of discharged tail water is good, the water quality and stability of the tail water are effectively improved, and the water quantity is reduced significantly; and the method has the advantages of short flow, low space occupation, appropriate investment, low operation cost and the like.

Description

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Claims

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Application Information

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Owner LIUZHOU IRON & STEEL
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