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Method for treating underground seawater used for aquiculture

A treatment method and aquaculture technology, applied in seawater treatment, water/sewage treatment, polluted groundwater/leachate treatment, etc., can solve the problems of large floor area, high labor intensity, and low efficiency of iron and manganese removal. Achieve the effects of small footprint, improved processing capacity, and easy maintenance

Inactive Publication Date: 2012-05-23
FISHERY MACHINERY & INSTR RES INST CHINESE ACADEMY OF FISHERY SCI
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to propose a treatment process for underground seawater containing iron and manganese that meets the water quality requirements of aquaculture, so as to solve the problems of low iron and manganese removal efficiency, large floor space and high labor intensity in current underground seawater.

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  • Method for treating underground seawater used for aquiculture
  • Method for treating underground seawater used for aquiculture
  • Method for treating underground seawater used for aquiculture

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[0029] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0030] Such as figure 1 , 2 Shown, a kind of embodiment according to the treatment method requirement of underground seawater for aquaculture of the present invention is configured as follows: comprise the fast aeration aeration tank 100, the iron with the three-dimensional elastic filter material of brush-like PE material suspended inside. Manganese bacteria biological reaction tank 200, air flotation tank 300, double-layer simple sand filter tank 400, water inlet pipeline 500, clear water pipeline 600, sewage discharge pipeline 700 and foam discharge pipeline 800.

[0031] Underground seawater rich in iron and manganese is drawn from the deep well by water pumps, and enters the rapid aeration tank 100 from the water inlet pipeline 500, and the diss...

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Abstract

The invention belongs to a technological method for removing iron and manganese in underground seawater out of marine culture water. The method for treating underground seawater used for aquiculture comprises the following steps of: quick oxygenation treatment: carrying out oxygenation treatment by an oxygenation appliance and maintaining the pH value of a water body to be 7.0-7.8, wherein [O2] is not less than 0.40[Fe2+]; biological oxidation treatment: hanging a hairbrush-shaped three-dimensional elastic filtering material of a PE material in a corridor of a reaction pool and forming a biologic filter membrane at the surface of a filler; detention treatment: detaining an insoluble substance in the elastic filtering material by the elastic filtering material in the reaction pool; precipitation treatment: precipitating in the corridor with the average water flow rate of 10-20m / h and the oxidation time of 1.5-3h; floatation treatment: treating by a floatation device, removing the fine particles of the iron and the manganese, carrying out secondary oxygenation and separating and removing most of insoluble compounds; and sand grain filtration treatment: filtering cinder and quartz sand by a two-section type filtering material filtration pool. The invention can ensure the content of dissolved oxygen in water, maintains the balance and the stability of microorganisms in the biologic filtering material and the water quality, has lower investment and running cost and increases the benefit of a culture system.

Description

(1) Technical field [0001] The invention belongs to the field of seawater aquaculture water treatment, and in particular relates to a process for removing iron and manganese in underground seawater. (2) Background technology [0002] my country's seawater aquaculture industry is booming, but the water quality of my country's coastal seawater is generally difficult to meet the requirements of aquaculture. my country's coastal seawater aquaculture is increasingly using underground seawater as aquaculture water source. In particular, flounder and flounder farming in northern my country generally use seawater wells to extract underground seawater to obtain relatively high-quality aquaculture source water. Usually, underground seawater contains more or less iron and manganese, and breeding aquatic economic animals with groundwater rich in iron and manganese will bring great harm to the breeding objects. Among them, the oxidation process of ferrous manganese will make the water b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14A01K63/04C02F3/10C02F1/52C02F1/24C02F1/62C02F103/08C02F103/06
CPCY02W10/10
Inventor 庄保陆张业韡倪琦
Owner FISHERY MACHINERY & INSTR RES INST CHINESE ACADEMY OF FISHERY SCI
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