CN1559936A

CN1559936A - Ecology process of controlling nitrite in fish and shrimp pond

Info

Publication number: CN1559936A
Application number: CNA2004100127598A
Authority: CN
Inventors: 王业勤; 王若雪; 王靖; 李勤生
Original assignee: Yishengquan Biology Science & Tecnology Development Co Ltd Wuhan
Current assignee: Yishengquan Biology Science & Tecnology Development Co Ltd Wuhan
Priority date: 2004-02-23
Filing date: 2004-02-23
Publication date: 2005-01-05
Anticipated expiration: 2024-02-23
Also published as: CN1309666C

Abstract

The invention is an ecological method of controlling nitrite in fish and shrimp pool, fixing helpful microbe particles on discarded crop stalks, then throwing these stalks in the bottom of the pool, so that the helpful microbes grow and breed by using surplus waste nitrogen in the pool and additional carbon source so as to eliminate harmful nitrite and amino nitrogen; simultaneously decomposes organic matters in bottom mud, and the helpful microbes themselves can act as the source of monocell protein of fishes and shrimps. It can not only implement resource utilization of the discarded matters but also promote ecological balance, implementing healthy breeding.

Description

A kind of ecological approach of controlling fishes and shrimps pool nitrite

Technical field

The present invention relates to a kind of ecological approach of controlling fishes and shrimps pool nitrite.

Background technology

The various wastes that produce in the aquaculture process, comprise residual bait, fishes and shrimps movement, dead biological residual body and medicine, fertilizer etc., they accumulate in the pond, decompose, transform, form in a large number to the virulent multiple material of fishes and shrimps, as nitrite, hydrogen sulfide, methane, ammonia nitrogen, oxynitride etc., make water quality deterioration, threaten the existence and the normal growth of cultivated animals.Particularly under high-density, intensive culture condition, a large amount of bait throwing in, the nitrite content in the water body is severe overweight often, causes nitrite poisoning and fishes and shrimps death, becomes outstanding problem that needs to be resolved hurrily in the aquaculture.

Nitrite is the intermediate product of multiple biochemical reaction in the aquaculture water Nitrogen Cycling, is the main existence form of inorganic nitrogen, is a kind of deleterious poisonous substance, and is not only harmful to fishes and shrimps, and water surrounding and human health are all had harm.

The removal of nitrite has chemical oxidization method and microorganism treatment: comprise nitrification, denitrification, assimilation or the like.Chemical oxidization method instant effect, but the weak point of holding time will constantly drop into chemicals with its oxidation, and cost is high and dangerous.

Summary of the invention

The objective of the invention is in order to overcome the problem of above-mentioned existence, a kind of ecological approach of controlling fishes and shrimps pool nitrite is provided, this method belongs to microorganism treatment, and effect stability, long action time, safety, cost are low, meets the requirement that pollution-free healthy is cultured.In the aquaculture water useless nitrogen compound accumulation exceed standard be with aquatic ecosystem in the carbon source deficiency closely-related.To the water body supplementary carbon source, help the removal of nitrite, ammonia nitrogen, also help the growth and the Metabolic activity thereof of microorganisms in water.

A kind of ecological approach of controlling fishes and shrimps pool nitrite, beneficial microorganism is fixed on the depleted crop straw by granulation, again crop straw is rendered to pond bottom, beneficial microorganism utilizes unnecessary useless nitrogen in pond and additional carbon growth and breeding, transforms nitrite and the ammonia nitrogen removed the toxic effect of fishes and shrimps; Decompose the bed mud organism simultaneously, itself can be used as the source of fishes and shrimps single cell protein again the beneficial microorganism cell.

Described beneficial microorganism is the bacillus bacterioid of generally acknowledging both at home and abroad.

Described depleted crop straw is rice wheat straw bar, sorghum rod, wild wild rice bar, bagasse.

Described depleted crop straw is through being crushed to 20-80 order particle, and mixes with clay colloid and an amount of quick-acting carbon source, slow carbon source, will fix by tablets press, makes it to become long-acting rich carbon probiotics.

There is abundant renewable straw resource in China, and as rice wheat straw bar, sorghum rod, wild wild rice bar, bagasse etc., main at present as fuel, how utilizing this type of waste to make it resource utilization is significant problem.Nitrogen-free extract and Mierocrystalline cellulose, the hemicelluloses etc. such as sugar that contain various remnants in these wastes can be used as carbon source and carrier that microorganism growth is bred.

The feature of present method is to utilize the depleted straw as beneficial microorganism nutrition source and carrier, after immobilization, renders to the cultivating pool bottom, to reach following target:

But the long period survived in pond bottom after 1, beneficial microorganism was fixed, and decomposed the organism in the bed mud, made its mineralising, reduced the pollution in pond, improved water quality, reduced disease, realized healthy aquaculture;

2, unnecessary useless nitrogen growth, breeding in the carbon source of the cheapness that adds of beneficial microorganism utilization and the pond system, transform to remove to deleterious nitrite of fishes and shrimps and ammonia nitrogen;

3, with pond waters as bio-reactor, utilize nitrogen, phosphorus and the additional carbon of pond eutrophication, produce the microorganism single cell protein, support as feed and grow animal such as fishes and shrimps are edible, reduce the input of feed, realize the purpose of utilization of waste material, the eubiosis and healthy aquaculture.

Embodiment

With depleted rice wheat straw bar through being crushed to 60 order particles, and mix with clay colloid and an amount of quick-acting carbon source, slow carbon source, by tablets press the bacillus bacterium is fixed on the rice wheat straw bar particle, make it to become long-acting rich carbon probiotics, render to pond bottom, the bacillus bacterium utilizes unnecessary useless nitrogen in pond and additional carbon growth and breeding, transforms nitrite and the ammonia nitrogen removed the toxic effect of fishes and shrimps; Decompose the bed mud organism simultaneously, and bacillus bacterium itself can be used as the source of fishes and shrimps single cell protein again.

Claims

1, a kind of ecological approach of controlling fishes and shrimps pool nitrite, it is characterized in that: beneficial microorganism is fixed on the depleted crop straw by granulation, again crop straw is rendered to pond bottom, beneficial microorganism utilizes unnecessary useless nitrogen in pond and additional carbon growth and breeding, transforms nitrite and the ammonia nitrogen removed the toxic effect of fishes and shrimps; Decompose the bed mud organism simultaneously, itself can be used as the source of fishes and shrimps single cell protein again the beneficial microorganism cell.

2, ecological approach according to claim 1 is characterized in that: described beneficial microorganism is the bacillus bacterioid of generally acknowledging both at home and abroad.

3, ecological approach according to claim 1 is characterized in that: described depleted crop straw is rice wheat straw bar, sorghum rod, wild wild rice bar, bagasse.

4, ecological approach according to claim 1; it is characterized in that: described depleted crop straw is through being crushed to 20-80 order particle; and mix with clay colloid and an amount of quick-acting carbon source, slow carbon source, by tablets press beneficial microorganism is fixed, make it to become long-acting rich carbon probiotics.