Iron phosphate wastewater treatment method and system

A wastewater treatment and treatment system technology, applied in water/sewage treatment, non-polluting water treatment, neutralized water/sewage treatment, etc., can solve the problems of investment cost of discharge pollution, low resource recovery and utilization rate, etc.

Inactive Publication Date: 2022-03-01
昆山三一环保科技有限公司
View PDF0 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a method and system for treating iron phosphate wastewater, which are used to solve the defects of low resource recovery utilization rate, discharge pollution and high investment cost in the treatment of iron phosphate wastewater in...

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
  • Iron phosphate wastewater treatment method and system
  • Iron phosphate wastewater treatment method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0051] Combine below figure 1 Describe a kind of ferric phosphate wastewater treatment method of the present invention. This approach includes:

[0052] S1. Pretreating the ferric phosphate mother liquor to obtain clarified filtrate of the mother liquor, and pretreating the ferric phosphate washing water to obtain concentrated water A. This step mainly pretreats the mother liquor and washi...

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 relates to the technical field of industrial wastewater treatment, and provides an iron phosphate wastewater treatment method and system. The iron phosphate wastewater treatment method comprises the following steps: S1, pretreating iron phosphate mother liquor to obtain mother liquor clarified filtrate, and pretreating iron phosphate washing water to obtain concentrated water A; s2, mixing the mother liquor clarified filtrate and the concentrated water A, evaporating and concentrating to obtain concentrated water B; s3, the concentrated water B is centrifuged for cooling crystallization, and a solid product is obtained and dried. According to the iron phosphate wastewater treatment method and system provided by the invention, respective treatment is carried out according to the characteristics of iron phosphate production wastewater, and the concentrated water after evaporation and concentration is subjected to operations such as centrifugation, cooling crystallization and drying, so that ammonium sulfate, ammonium hydrogen phosphate, magnesium sulfate and pure water in the wastewater are recycled, and the purposes of resource recovery and zero emission are achieved.

Description

technical field [0001] The invention relates to the technical field of industrial wastewater treatment, in particular to a method and system for treating iron phosphate wastewater. Background technique [0002] Iron phosphate is the precursor of lithium iron phosphate, an ideal battery cathode material. With the rapid development of the new energy market, the demand for power batteries, energy storage materials or equipment is increasing, so the demand for iron phosphate is also growing rapidly. Ferric phosphate will go through processes such as synthesis and washing during the production process, and the synthetic mother liquor and washing water produced by it will contain different concentrations of metal ions, sulfate ions (SO 4 2- ), phosphate ion (PO 4 3- ) of high-salt inorganic wastewater, which is difficult to treat, and the discharge of wastewater will cause serious damage and impact on the surrounding environment. [0003] At present, the mainstream methods of...

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
IPC IPC(8): C02F9/10C01C1/24C01B25/28C01F5/40C02F103/04
CPCC02F9/00C01C1/249C01B25/28C01F5/40C02F1/66C02F1/001C02F1/441C02F1/38C02F1/041C02F2103/02
Inventor 胡美为潘文政朱碧云周福伟陈思
Owner 昆山三一环保科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap