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

Comprehensive utilization high advantage zero discharge seawater desalination production technology

A production process, zero-emission technology, applied in chemical instruments and methods, seawater treatment, alkali metal chlorides, etc., can solve the problems of high production cost, high price, marine ecological environment pollution, etc. Effect

Inactive Publication Date: 2007-07-18
葛文宇
View PDF0 Cites 33 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Applying the above four seawater desalination technologies, the average production cost for each ton of desalinated clean water needs to be RMB 6-10, which is too high to be fully commercialized and applied. What’s more, there is a common problem with the above four methods: After being desalinated, a large amount of concentrated brine (concentration almost doubled, reaching about 5% to 6%) is discharged into the sea again, which increases the salt concentration of seawater in some sea areas and destroys the natural ecology of seawater salinity. Balance, causing pollution to the ecological environment of the ocean, so it will pose a threat to the survival of marine life in local sea areas
[0007] In view of the practical problems existing in the above-mentioned existing seawater desalination technology, the present inventor, on the basis of summarizing the experience of predecessors' technology, through repeated investigations and researches, analyzes the deficiencies of the existing seawater desalination technology at present, and finally Invented a new solution with reverse thinking from traditional seawater desalination: traditional seawater desalination only extracts fresh water from seawater, and fresh water is the only product, so the production cost is high

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
  • Comprehensive utilization high advantage zero discharge seawater desalination production technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] The specific implementation, features, and effects of the comprehensive utilization, high-efficiency and zero-emission seawater desalination combined production process proposed by the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0041] Please refer to Figure 1, the present invention comprehensively utilizes the seawater desalination combined production process with high efficiency and zero discharge, which mainly includes seawater pretreatment 1, seawater purification pool 2, delivery pump 3, concentration equipment electrodialysis (ED) 4, low temperature Evaporation and concentration equipment 4.1, clean saturated brine 4.2, extraction of various salt chemical products 4.3, distilled water recovery equipment 4.4, desalination equipment reverse osmosis membrane (RO) 5, No. 1 energy recovery equipment 5.1, No. 2 energy recovery equipment 6, water source heat pump 7. Fresh water purification...

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

This invention provides a sea-water desalination combination production technology, which is of multi utilization, high efficiency, and zero release. It is primary to obtain salt, secondary to get water, implement multi utilization. Production method can be arranged to concentrate first for extracting salt and second desalinate for extracting water (it can first desalinate for extracting water and second concentrate for extracting). Implement salt water purification by salt water fore treatment, extract seaweed from it, concentrate and extract purified salt water, extract pure saturated brine of which salt concentration achieves 26%-28% (average salt concentration of salt water untreated water is 3.5%), process salinification product with saturated brine, implement integrated usage; desalinate remaining saline water, extract fresh water which achieves drinking standard and of which salinity is lower than 500mg / , increase salt concentration of another saline water to 3.5% (the same as salt water untreated water), circulate to use, not valley, implement zero release; This invention reclaims all of remaining energy and waste heat. It provides cheap and eternal fresh water resource for people and society.

Description

technical field [0001] The invention relates to seawater desalination, in particular to a combined production process for seawater desalination with high efficiency and zero discharge. Background technique [0002] Water is the source of life on which all creatures in nature rely for survival. Because of water, there is life on the earth. Since the 18th century, due to the rapid development of industry and the rapid growth of human reproduction, the ecological environment on the earth's surface has continued to deteriorate. More than 60% of the original forests in the world have been destroyed, and the entire earth's ecology has lost its balance. The fresh water resources that human society depends on It is also constantly decreasing, and many rivers have become dry rivers. However, the consumption of domestic water and industrial water necessary for human beings is increasing year by year, and an irresistible contradiction is formed between the reduction of fresh water res...

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): C02F9/00C01D3/06C02F103/08
CPCY02P20/129
Inventor 葛文宇
Owner 葛文宇
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