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Water integrative treatment technique for prawn cultivation

A technology for comprehensive treatment and prawns, which is applied in the field of comprehensive treatment of water for prawn seedlings to achieve the effects of increasing the emergence rate, increasing the yield and improving the safety factor.

Inactive Publication Date: 2009-06-03
GUANGDONG OCEAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional seedling water treatment technology fails to solve the above problems well

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The specific content of the comprehensive treatment method of water for shrimp nursery;

[0014] (1) Primary filter:

[0015] The natural seawater is pumped up and filtered through a first-level sand filter, that is, coarse filtration. This level of filter can be installed in the sea or on land, and it mainly plays the role of blocking coarse debris and silt.

[0016] (2) Sedimentation tank:

[0017] ①Splash quicklime

[0018] After the natural seawater is pumped into the sedimentation tank, the pH value of the seawater is measured. When the pH value is below 7.9, 20ppm quicklime is sprinkled, and when the pH value is above 8.0, 10ppm quicklime is sprinkled. After the quicklime is combined with seawater, when the acidity of the water increases, the following reactions will occur: CaCO 3 +CO 2 +H 2 O——Ca + +2HCO 3 ; When OH in water - When increasing, carry out the following reaction to reduce OH - : Ca 2+ +2HCO 3 ——CaCO 3 ↓+2H + +OH - ——H 2 O quicklime ca...

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Abstract

The invention belongs to water treatment technology of aquaculture, in particular to a comprehensive treatment technology of prawns raising seedling water, comprising following steps: a first level filtering-a depositing reservoir-a secondary sand filtering-water body disinfection-throwing in larva. The comprehensive treatment technology of prawns raising seedling water adopts synthetic system for processing water which combines physical, chemical, medication and different kinds of control measures, can efficiently balance the acid-base value of water body, clear away or reduce the poisonous material in water body such as ammonia nitrogen and nitrite, remain chlorine (free chlorine), can extinguish germ and fungus in water, extinguish and clear away various harmful biology in water body, optimize water quality fully, furthest decrease foot phenomenon of seedlings, raise emergence rate, raise output and optimize quality.

Description

technical field [0001] The invention belongs to the water treatment technology of the aquaculture industry, in particular to a comprehensive water treatment method for raising shrimp seedlings. Background technique [0002] The quality of water quality is the key to the level of seedling production and the success or failure of seedling cultivation. The treatment of seedling water includes the regulation of water temperature, salinity, dissolved oxygen, and pH value, the elimination or reduction of excess metal ions and toxic substances in the water body, and the removal of harmful organisms in the water body. At present, the water treatment methods for shrimp (mainly Penaeus vannamei, Penaeus monodon, Penaeus japonicus, Penaeus chinensis, etc.) nursery water usually use sedimentation, sand filter filtration, water addition, aeration, and ethylenediaminetetraacetic acid (EDTA) Sodium salt, some use chlorine-containing drugs (such as bleaching powder, strong chlorine essence...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/08C02F1/66C02F1/28C02F1/50C02F1/68C02F103/08
Inventor 胡贤德
Owner GUANGDONG OCEAN UNIVERSITY