Energy-saving high-salt wastewater treatment system and treatment method

A high-salt wastewater treatment system technology, applied in water/sewage treatment, water/sewage multi-stage treatment, heating water/sewage treatment, etc. The effect of less differential polarization and energy saving

Active Publication Date: 2015-02-04
马涛 +1
View PDF11 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In addition, currently commonly used physical and chemical treatment methods for high-salt wastewater, such as electrolysis, incineration, evaporation, membrane distillation, and advanced oxidation, all have shortcomings such as high energy consumption, high cost, and secondary pollution to varying degrees.

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
  • Energy-saving high-salt wastewater treatment system and treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] The high-efficiency and energy-saving high-salt wastewater treatment system of the present invention mainly includes a forward osmosis salt concentration device, a mother liquor (or concentrated liquid) multi-effect evaporator 40 and an osmotic energy utilization device, and each device is connected in sequence through pipelines. The specific structure of each device is shown in Figure 1.

[0039] The forward osmosis salt concentration device includes at least one stage of FO membrane closed exchange box 2 (three stages are provided in Figure 1), a draw liquid recycling device and a clean water recycling device.

[0040] A membrane frame 5 is arranged in the middle of the single-stage FO membrane airtight exchange box 2 , and a membrane element 6 is arranged inside the membrane frame 5 . The membrane frame 5 divides the FO membrane closed exchange box 2 into two parts: the left mother liquid area (high-salt wastewater area) and the right draw liquid area. The two areas ...

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 an energy-saving high-salt wastewater treatment system and treatment method. The system comprises a forward-osmosis salt concentrating device and a multi-effect evaporator, wherein the forward-osmosis salt concentrating device comprises an FO membrane closed exchange box, an absorbing liquid recycling device and a fresh water recycling device; at least one stage of FO membrane closed exchange box is arranged; the absorbing liquid recycling device is respectively connected with each stage of FO membrane closed exchange box through electric valves; the fresh water recycling device is connected with the absorbing liquid recycling device; all stages of FO membrane closed exchange boxes are sequentially connected through liquid discharging electric valves and all connected with a multi-effect mother liquor evaporator through overrunning electric valves. According to hyperosmosis character of the high-salt wastewater and due to preparation of the absorbing liquid with higher colligative properties and utilization of osmotic pressure difference caused by difference of the colligative properties, the method can be used for efficiently concentrating the high-salt wastewater as well as recycling water resource to generate electric energy; automatic interlock control is realized during a running process, and the running mode can be regulated according to different water charging conditions.

Description

technical field [0001] The invention relates to a treatment system for high-salt wastewater and a treatment method thereof, belonging to the technical field of wastewater treatment. Background technique [0002] Saline wastewater includes saline domestic sewage, saline industrial wastewater and other saline wastewater. Hypersaline wastewater is wastewater containing organic matter and at least 3.5% (mass concentration) of total dissolved solids (TDS). High-salt wastewater comes from a wide range of sources. One is from various industrial production processes such as chemical industry, pharmaceuticals, petroleum, printing and dyeing, papermaking, dairy product processing, and food canning; Fire etc. [0003] The organic matter in high-salt organic wastewater varies greatly depending on the production process, and the types and chemical properties of the organic matter are quite different, but most of the salts contained are Cl - , SO 4 2- 、Na + , Ca 2 + and other sal...

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): C02F9/10
CPCC02F1/04C02F1/445C02F9/00
Inventor 马涛康兴生张波
Owner 马涛
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