Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method and system for treating phenol-ammonia wastewater

A technology for removing ammonia wastewater and wastewater, which is applied in the field of coal chemical industry, can solve the problems of large wastewater discharge, difficulty in removing and recycling coal tar, and affecting the normal production of the device, and achieve the effect of low recycling cost

Active Publication Date: 2021-02-23
新疆宣力环保能源股份有限公司
View PDF3 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially in the process of comprehensive utilization of low-rank coal, because the moisture content of low-rank coal is as high as 17-20%, the wastewater generated during its processing is relatively large, and may enter downstream with coal tar, raw gas, semi-coal and other products, affecting The device is in normal production while causing serious environmental pollution
[0003] The prior art has the following disadvantages: 1. The coal tar in the waste water is difficult to remove and recycle; 2. The operating cost of the waste water produced by the comprehensive utilization of low-rank coal is high; 3. The resistance drop in the waste water concentration process system is high and the separation efficiency is low , The anti-particle performance is small; 4. The system is often scaled, and the system needs to be descaled frequently

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 and system for treating phenol-ammonia wastewater
  • Method and system for treating phenol-ammonia wastewater
  • Method and system for treating phenol-ammonia wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0079] use as figure 1 The system shown treats phenolic ammonia wastewater, specifically:

[0080] S1: Make the phenol ammonia wastewater to be treated (flow rate is 50t / h, COD content is 25000mg / L, ammonia nitrogen content is 8000mg / L, total phenol content is 8000mg / L, oil content is 2000mg / L, pH is 9.5, from coal tar hydrogenation process) into the settling tank 1, and add 0.5kg degreasing agent in the settling tank 1, and let it stand at 40°C for 10h to obtain the upper layer material containing light oil, soluble alkali salt and scum and containing dirt mud, sodium phenate, heavy oil and soluble salts in the lower layer, where the total flow rate of the lower layer is 1m 3 / h, the intermediate layer material is introduced into the first filter 2 to filter to obtain degreasing waste water; wherein, the filter medium of the first filter 2 is walnut shell, activated carbon and quartz sand;

[0081] S2: Add lye to the oil-removing wastewater obtained in S1, adjust the pH to ...

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

PropertyMeasurementUnit
boiling pointaaaaaaaaaa
concentrationaaaaaaaaaa
boiling pointaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method and system for treating phenol-ammonia wastewater, and the method comprises the following steps: adding an oil removal agent into the phenol-ammonia wastewater to obtain pretreated oil-removed wastewater, further performing deamination treatment on the oil-removed wastewater to obtain deaminated wastewater, and then introducing the obtained deaminated wastewater into an evaporation device to perform dephenolization treatment to obtain dephenolized and deaminated wastewater; and finally, filtering the dephenolized and deaminized wastewater to obtain purified water meeting reuse requirements, wherein ammonia gas, coal tar and sodium phenolate are byproducts at the same time, the reuse cost is low, and the COD content, the ammonia nitrogen content, the totalphenol content and the oil content in reuse water are all low.

Description

technical field [0001] The present disclosure relates to the field of coal chemical industry, in particular to a method and system for treating phenolic ammonia wastewater. Background technique [0002] Phenol-ammonia wastewater is a kind of highly polluting and highly toxic industrial wastewater containing both phenol and ammonia produced during the coal separation and utilization process. Especially in the process of comprehensive utilization of low-rank coal, because the moisture content of low-rank coal is as high as 17-20%, the waste water generated in the processing process is relatively large, and can enter the downstream with coal tar, raw gas, semi-coal and other products, affecting The normal production of the device caused serious environmental pollution at the same time. [0003] The prior art has the following disadvantages: 1. The coal tar in the waste water is difficult to remove and recycle; 2. The operating cost of the waste water produced by the comprehens...

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): C02F9/10C02F101/16C02F101/34
CPCC02F9/00C02F1/001C02F2001/007C02F1/40C02F1/66C02F1/52C02F1/04C02F2101/16C02F2101/345
Inventor 房广信兰岚刘永东程仁杰郑维军张军陈步宁
Owner 新疆宣力环保能源股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com