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

Treatment process for wastewater containing copper and ammonia nitrogen

A technology of ammonia nitrogen wastewater and treatment process, which is applied in the field of treatment process of copper-containing and ammonia nitrogen wastewater, and can solve the problems of high ammonia nitrogen concentration, high ammonia nitrogen concentration in effluent, and low organic matter content, etc.

Inactive Publication Date: 2019-04-16
上海集承环保技术有限公司
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Biological treatment of ammonia nitrogen wastewater is the most economical and effective, but it is limited by many conditions, such as wastewater must be biodegradable, ammonia nitrogen concentration cannot exceed 200mg / L, etc., and ammonia nitrogen wastewater discharged in actual industrial production generally has a high concentration of ammonia nitrogen , low organic matter content, etc., which makes it difficult for biological treatment to be practically applied
The ammonia stripping method converts the ammonia nitrogen from the ionic state to the free state by adjusting the pH, and then realizes the separation of ammonia nitrogen through gas-liquid mass transfer. This method has a good effect on treating wastewater and moderate cost, but the treatment efficiency is low, and the concentration of ammonia nitrogen in the effluent is still high. needs further processing

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
  • Treatment process for wastewater containing copper and ammonia nitrogen
  • Treatment process for wastewater containing copper and ammonia nitrogen
  • Treatment process for wastewater containing copper and ammonia nitrogen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A treatment process for wastewater containing copper and ammonia nitrogen, comprising the steps of:

[0031] a. Inject waste water into No. 1 stirring tank, adjust the pH to 7, add sodium sulfide and stir for 30 minutes;

[0032] b. Inject the produced water in No. 1 stirring tank in step a into No. 1 sedimentation tank. After 3 hours of sedimentation, the overflow water will automatically flow into No. 2 stirring tank;

[0033] c, add ferrous sulfate in No. 2 stirring pool in step b, stir for 30 minutes, then add appropriate amount of sodium hydroxide and diatomaceous earth;

[0034] d. Inject the produced water in the No. 2 stirring tank in step c into the No. 2 sedimentation tank. After 3 hours of sedimentation, the overflow water automatically flows into the overflow recovery bucket, and injects the water in the overflow recovery bucket into the filter press to filter;

[0035] e. Inject the filtered product water in step d into mixing tank No. 3, add magnesium chl...

Embodiment 2

[0039] Embodiment 2: A treatment process for wastewater containing copper and ammonia nitrogen, the difference from Embodiment 1 is that the pH in step a is 7.5.

Embodiment 3

[0040] Embodiment 3: A treatment process for wastewater containing copper and ammonia nitrogen, the difference from Embodiment 2 is that the pH in step a is 8.

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 treatment process for wastewater containing copper and ammonia nitrogen. The treatment process comprises: a, injecting wastewater into a stirring pool 1, adding sodium sulfide, and uniformly stirring; b, injecting the water produced in the step a into a precipitation pool 1, and flowing overflow water into a stirring pool 2; c, adding ferrous sulfate to the stirring pool2, uniformly stirring, and adding an alkali; d, injecting the water produced in the step c into a precipitation pool 2, flowing overflow water into an overflow recovery barrel, injecting into a filterpress, and filtering; e, injecting the water produced in the step d into a stirring barrel 3, adding magnesium chloride and disodium hydrogen phosphate, stirring uniformly, and adding a flocculatingagent; f, injecting the supernatant liquid in the step e into a sand filtering device and an active carbon filtering device, and filtering; g, injecting the filtered water produced in the step f intoa reverse osmosis membrane system; and h, injecting the filtered water produced in the step g into a storage barrel 3, and discharging after the inspection result meets the standard. According to thepresent invention, the treatment process has high treatment efficiency, and the treated water can meet the national first-level emission standard.

Description

technical field [0001] The invention relates to the technical field of waste water treatment, more specifically, it relates to a treatment process for waste water containing copper and ammonia nitrogen. Background technique [0002] Ammonia nitrogen wastewater is a kind of extensive and seriously polluting wastewater. Its existence is the main factor causing eutrophication of water bodies. The consumption of oxidants in drinking water treatment increases the cost of water treatment, and ammonia nitrogen is eventually oxidized to nitrate or nitrate in water. Nitrates have adverse effects on human health and aquatic life. At present, due to the many adverse effects caused by ammonia nitrogen, people have enough understanding to develop a series of treatment methods, such as electrodialysis, reverse osmosis, evaporation crystallization, ammonia stripping, ion exchange, chemical precipitation, break point chlorine Chemical, biological methods, etc., but the nitrogen removal met...

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): C02F9/04
CPCC02F1/001C02F1/281C02F1/283C02F1/441C02F1/5236C02F1/56C02F1/66C02F9/00C02F2301/08
Inventor 顾韬
Owner 上海集承环保技术有限公司