Method for biological resource recovery of industrial marine fish aquaculture wastewater

A fish farming and biological resource technology, which is applied in the field of biological resource treatment of industrialized marine fish farming wastewater, can solve problems such as environmental pollution of industrialized fish farming wastewater

Active Publication Date: 2011-10-12
INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a biological resource treatment method for industrialized

Method used

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Examples

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Embodiment 1

[0013] In a industrialized turbot fish breeding base in Yantai, Shandong Province, a biological resource treatment test of breeding wastewater was carried out by using the present invention.

[0014] A factory fish farming wastewater treatment pond with an area of ​​about 2.5 mu (1636 square meters) and a water depth of about 1.5 meters was established in the industrialized turbot fish breeding base. It flows out at one end and is discharged into the open sea. From 2008 to 2009, the biological resource treatment test of aquaculture wastewater was carried out.

[0015] The cultivation mode of macroalgae is as follows, from May 1-3, 2008, Gracilaria lemaneiformis was cultivated. The asparagus used comes from the coast of Kamata, Fujian. Cultivate asparagus by clamping seedlings hanging method, each rope clips 1 meter of seedlings, 16-18 clusters of seedlings, each cluster of seedlings is 18-20 cm long, and 0.2 kg of seedlings per rope. The asparagus is 0.6-0.8 meters above th...

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Abstract

The invention relates to a water treatment technique, in particular to a method for biological resource recovery of industrial marine fish aquaculture wastewater. In the method, macroscopic algae, filter feeders, sediment animals and carnivorous fishes are cultured in the industrial marine fish aquaculture wastewater of which the water temperature is between 4 and 27 DEG C to form a biological filter to treat the wastewater discharged by industrial fish aquaculture, wherein the macroscopic algae are warm water macroscopic algae and cold water macroscopic algae; the filter feeders are filtering seashells and fishes, the seashells comprise one or more of oyster, sea-mussel and scallop, and the filtering fishes are barracudas; the carnivorous fishes comprise one or more of weever, flounder and black marine rock fish; and the sediment animals are Stichopus japonicus Selenka. In the method, based on the ecology principle, the macroscopic algae, the filter feeders, the sediment animals and the carnivorous fishes are combined together, and the macroscopic algae, the filter feeders, the sediment animals and the carnivorous fishes coordinate with one another and serve as the biological filter to comprehensively treat the wastewater discharged by the industrial fish aquaculture.

Description

technical field [0001] The invention relates to water treatment technology, in particular to a biological resource treatment method for industrial seawater fish breeding wastewater. Background technique [0002] The output of pollutants from coastal intensive aquaculture (including factory farming and pond farming) mainly includes uneaten food, manure and excreta. With the development of aquaculture, in recent years, the total discharge of mariculture wastewater has exceeded that of land-based wastewater. This may be one of the important reasons leading to the continuous deterioration of the marine environment. The discharge of a large amount of organic eutrophic wastewater from marine intensive aquaculture will have a pollution effect on coastal waters, and even lead to eutrophication, which is one of the important human activities that affect the coastal marine ecosystem. Therefore, this highly polluting aquaculture model has been questioned by many people and has become...

Claims

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Application Information

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IPC IPC(8): C02F3/32C02F3/34
Inventor 周毅刘鹰杨红生刘石林张少军王朝夕张明珠张福绥
Owner INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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