Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for treating acidic wastewater

A treatment method, acid wastewater technology, applied in water/sewage treatment, biological water/sewage treatment, neutralized water/sewage treatment, etc., can solve the problem of difficulty in completely removing acidic ions in wastewater, difficulty in removing organic matter in wastewater, and wastewater treatment effect Poor problems, to achieve good wastewater treatment effect, reduce engineering cost investment, and reduce labor load

Inactive Publication Date: 2018-06-22
潘明芳
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional treatment process is difficult to completely remove the acid ions in the wastewater, resulting in the final discharge of the treated wastewater will still carry acid ions, affecting the ecological environment, and even pollute drinking water, and the organic matter in the wastewater is also difficult to remove, Wastewater treatment effect is poor

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for treating acidic wastewater
  • Method for treating acidic wastewater
  • Method for treating acidic wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A method for treating acidic wastewater, including the following steps: (1) Put industrial wastewater into a neutralization tank, and put limestone into the neutralization tank. The input amount of limestone is 160 mg / L. After limestone is put in, start the neutralization tank The agitating device for the wastewater is agitating device, and the neutralization reaction is 1h to realize the neutralization of the wastewater; (2) filtering the treated industrial wastewater through a filter screen to obtain the treated industrial wastewater; further, the steps (3) It also includes an activated sludge treatment step before. The specific operation of this step is as follows: After the industrial wastewater is treated by the aeration tank, the industrial wastewater is passed into the sedimentation tank for solid-liquid separation. The solid-liquid separation process needs to be sent to the sedimentation tank. Flocculant is added, the flocculant is selected from PAC, and the dosag...

Embodiment 2

[0039] It includes the following steps: (1) Put the industrial wastewater into the neutralization tank, and put limestone into the neutralization tank, the input amount of the limestone is 160mg / L, after the limestone is put in, start the stirring device in the neutralization tank to stir the wastewater Device, the neutralization reaction is 3h to realize the neutralization of the wastewater; (2) The treated industrial wastewater is filtered through a filter to obtain the treated industrial wastewater; further, the step (3) also includes activated sewage Sludge treatment step, the specific operation of this step is as follows: after the industrial wastewater is treated by the aeration tank, the industrial wastewater is passed into the sedimentation tank for solid-liquid separation. During the solid-liquid separation process, a flocculant needs to be added to the sedimentation tank. The agent is selected from ferrous sulfate; the dosage of the flocculant is 160mg / L; the sludge pr...

Embodiment 3

[0042] It includes the following steps: (1) Put the industrial wastewater into the neutralization tank, and put limestone into the neutralization tank, the input amount of the limestone is 160mg / L, after the limestone is put in, start the stirring device in the neutralization tank to stir the wastewater Device, the neutralization reaction is 3h to realize the neutralization of the wastewater; (2) The treated industrial wastewater is filtered through a filter to obtain the treated industrial wastewater; further, the step (3) also includes activated sewage Sludge treatment step, the specific operation of this step is as follows: after the industrial wastewater is treated by the aeration tank, the industrial wastewater is passed into the sedimentation tank for solid-liquid separation. During the solid-liquid separation process, a flocculant needs to be added to the sedimentation tank. The flocculant is ferrous sulfate and aluminum sulfate; the dosage of the flocculant is 140mg / L; t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for treating acidic wastewater. The method comprises the following steps: (1) putting industrial wastewater into a neutralizing pool, putting limestone into the neutralizing pool, carrying out a reaction for 1 to 3 hours and realizing wastewater neutralization; (2) discharging the neutralized wastewater into a coagulation pool, performing coagulating sedimentationin the coagulation pool and removing organic matters from the wastewater; (3) filtering the treated industrial wastewater by a filtering net to obtain the treated industrial wastewater. Due to addition of the limestone, the acid group anion is subjected to neutralizing operation effectively, the acid group anion in the wastewater is effectively removed, and the treated wastewater reaches to the discharge standard to avoid environmental pollution.

Description

Technical field [0001] The invention belongs to the technical field of industrial wastewater treatment, and in particular relates to a method for treating acidic wastewater. Background technique [0002] A large amount of waste water will be generated in the industrial production process. These waste water cannot be directly discharged into the external environment and need to be treated before it can be discharged normally. The traditional treatment process is difficult to completely remove the acid ions in the wastewater, resulting in the final discharged wastewater still carrying acid ions, affecting the ecological environment, and even polluting drinking water, and the organic matter in the wastewater is also difficult to remove. The wastewater treatment effect is poor. Summary of the invention [0003] In order to overcome the shortcomings of the prior art, the present invention provides a method for treating acid wastewater with good wastewater treatment effect. [0004] In ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F1/001C02F1/5236C02F1/56C02F1/66C02F3/12C02F9/00
Inventor 潘明芳
Owner 潘明芳