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

Electrochemical removal method for heavy metals in breeding circulating seawater

A heavy metal and electrochemical technology, applied in the electrochemical removal of mercury, zinc, cadmium, heavy metal copper and lead in aquaculture circulating seawater, can solve problems such as pollution of aquaculture aquatic products, and achieve simple and cheap equipment, moderate mechanical strength, and high reliability. Strong control effect

Active Publication Date: 2012-08-22
YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
View PDF4 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is to provide a method for electrochemically removing heavy metals in aquaculture circulating seawater. Based on the principle of electrochemical deposition (electrodeposition), a conductive carbon black paste electrode is used as an electrochemical working electrode to remove industrialized aquaculture at one time. 5 heavy metals including copper, zinc, lead, mercury and cadmium are included in the circulating seawater to solve the pollution problem caused by the heavy metals in the circulating seawater of industrialized farming to aquaculture aquatic products

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
  • Electrochemical removal method for heavy metals in breeding circulating seawater
  • Electrochemical removal method for heavy metals in breeding circulating seawater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0043] In this embodiment, the technical content of the present invention is further explained by removing heavy metals from the circulating water of industrialized culture of turbot.

[0044] The electrochemical removal method of heavy metals in aquaculture circulating seawater specifically comprises the following steps:

[0045] Step 1. Build 110m 3 FRP treatment tank 7 (including water inlet and outlet valve facilities), a three-electrode system is placed in the treatment tank—conductive carbon black paste electrode 2 with an area of ​​1m 2 , Columnar glassy carbon counter electrode 4 (model: AHDCL; diameter 2cm, working length 0.8m; Tianjin Aida Hengsheng Technology Development Co., Ltd.) and 217-type saturated calomel reference electrode 3 (Shanghai Yueci). The placement state of the working electrode is easy to take out and update, and the distance between the working electrode and the counter electrode is preferably more than 1m. There is no special requirement for th...

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 electrochemical removal method for heavy metals in breeding circulating seawater, belonging to the technical field of water treatment. The method comprises the following steps: firstly, adjusting the pH value of seawater to be treated to 1.0-2.4, and removing heavy metals in the seawater by utilizing a three-electrode system in an electrochemical mode; testing the concentration of the surplus heavy metals in the treated seawater by utilizing the three-electrode system in an anodic stripping voltammetry mode; representing the removal effect; and finally, adjusting the pH value of the seawater which is completely treated by adding sodium hydroxide, and adjusting the pH value by adding fresh water to the salinity required for actual breeding. The method is high in application current efficiency and low in material consumption and running cost, and is simple to operate and easy to learn without special training; and moreover, work electrodes are less vulnerable to poisoning, namely, the work electrodes are not be polluted. Five kinds of heavy metals in the seawater can be simultaneously removed efficiency and rapidly. The heavy metal removal effects of the method can be represented by only one piece of equipment without any other auxiliary materials or conditions.

Description

Technical field: [0001] The invention belongs to the technical field of water treatment, and in particular relates to an electrochemical removal method for heavy metals copper, zinc, lead, mercury and cadmium in aquaculture circulating seawater. Background technique: [0002] At the beginning of the 21st century, fishery production is in a transition period from fishing to breeding, from output to quality, and China's efficient and intensive aquaculture has entered a fast track of development. Compared with traditional aquaculture methods, industrial recirculating aquaculture has the characteristics of water saving, land saving, high-density intensification, no seasonal influence and controllable emissions. It meets the requirements of sustainable development and is an inevitable transformation of aquaculture methods in the future. trend. Due to the recycling of aquaculture water resources, one of the core elements of this technology is to actively control water quality. S...

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): C02F9/06C02F101/20
Inventor 张旭志曲克明马绍赛赵俊陈聚法
Owner YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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