A clamworm biofilter and method of use thereof

A biological filter and nereid technology, which is applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problem that the ability of worms to remove marine organic pollutants cannot be fully utilized, etc. problem, to achieve the effect of high feeding conversion efficiency and high efficiency

Inactive Publication Date: 2011-12-28
DALIAN OCEAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although clamworms can remove solid organic pollutants in the sea, clamworms still grow naturally and scattered at present, and the ever-changing external environment cannot meet the growth needs of clamworms, so that the ability of clamworms to remove marine organic pollutants cannot be fully exerted

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Bricks and cement are used to build a 1×1×0.5-meter, 15-centimeter-thick top-opening trough-shaped filter tank. A water inlet pipe is set on the top of the filter, and a drain pipe with a diameter of 10 cm is provided on the lower side of the bottom of the pool. The drain pipe passes through the bottom of the pool wall and is connected to the water pipe outside the filter with an elbow. The water level in the filter is changed according to the height of the mouth, and the gravel layer, coarse sand layer, fine sand layer and soil layer are successively laid in the filter tank from bottom to top as the substrate for the growth and survival of clamworms. The diameter of the gravel is 1 × 1cm, and the thickness is 10cm; the fine sand particle size is 0.5-1.0mm, and the thickness is 15cm; the lower limit of the soil layer thickness is 10cm.

[0019] The double-toothed clamworms are stocked in the above-mentioned ponds, and the density is 1000 tails / square meter. Every morni...

Embodiment 2

[0021] Bricks and cement are used to build a 2 x 2 x 0.5 m, 15 cm wall thickness trough-shaped filter tank with an upper opening. A water inlet pipe is set on the top of the filter, and a drain pipe with a diameter of 15 cm is provided on the lower side of the bottom of the pool. The drain pipe passes through the bottom of the pool wall and is connected to the water pipe outside the filter with an elbow. The water level in the filter is changed according to the height of the mouth, and the gravel layer, coarse sand layer, fine sand layer and soil layer are successively laid in the filter tank from bottom to top as the substrate for the growth and survival of clamworms. The diameter of the gravel is 2 × 2cm, and the thickness is 12cm; the fine sand particle size is 0.5-1.0mm, and the thickness is 13cm; the lower limit of the soil layer thickness is 10cm.

[0022] The above-mentioned ponds are stocked with unidentate clamworms with a density of 2000 tails / square meter. Every mo...

Embodiment 3

[0024] Bricks and cement are used to build a 2 × 1 × 0.5 meter, 15 cm wall thickness trough-shaped filter tank with an upper opening. A water inlet pipe is set on the top of the filter, and a drain pipe with a diameter of 12 cm is provided on the lower side of the bottom of the pool. The drain pipe passes through the bottom of the pool wall and is connected with the water pipe outside the filter with an elbow. The water level in the filter is changed according to the height of the mouth, and the gravel layer, coarse sand layer, fine sand layer and soil layer are laid in the filter tank from bottom to top in order as the substrate for the growth and survival of clamworms. The diameter of the gravel is 2×1cm, and the thickness is 8cm; the fine sand particle size is 0.5-1.0mm, and the thickness is 17cm; the lower limit of the soil layer thickness is 10cm.

[0025] In the above-mentioned pool, the clam worms with multiple teeth are raised, and the density is 1500 tails / square mete...

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Abstract

A clam worm biofilter, which mainly comprises: a water inlet pipe is arranged on the top of the upper opening trough filter, and a drain pipe is arranged at the bottom of the pool, and the drain pipe passes through the bottom of the pool wall and is connected with the water pipe outside the filter tank by an elbow. The gravel layer, coarse sand layer, fine sand layer and soil layer are successively laid in the filter tank from bottom to top, wherein the diameter of the gravel is 1-3×1-2cm, the thickness is 8-12cm; the particle size of the fine sand is 0.5-1.0mm, The thickness is 13-17cm; the lower limit of the thickness of the soil layer is 10cm; the clamworms are stocked in the pool, and the density of clamworms is 600-2000 tails / square meter. Use industrialized fish and shrimp farming solid waste as the worm bait, put the bait into the filter twice a day in the morning and evening, the bait is 10-15% of the total weight of the worm in the filter; the method of changing the water in the filter : Every morning and evening, lower the mouth of the water pipe outside the pool, lower than the water level at the bottom of the pool, and when adding new seawater, inject 0.1-0.5 cubic meters of water per hour. The invention can not only be suitable for the growth of clamworms but also can make them concentrate on treating marine solid organic pollutants.

Description

technical field [0001] The invention relates to an aquaculture facility and a construction method thereof. Background technique [0002] Factory aquaculture is a new aquaculture method produced during the development of traditional aquaculture industry towards modernization, enterprise and scale. Industrialized aquaculture is similar to traditional aquaculture, and the pollutants produced in the production process are also the main source of pollution in coastal waters. The main pollutants in factory aquaculture include inorganic pollutants (N, P), dissolved organic pollutants and solid organic pollutants (residual bait and feces). For inorganic pollutants and dissolved organic pollutants, the development of current water treatment technology can carry out better artificial treatment. However, for solid organic pollutants, due to the characteristics of different particle sizes and difficulty in degradation, it is difficult to have a better treatment method at present. Acc...

Claims

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Application Information

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IPC IPC(8): C02F3/32A01K67/033
Inventor 杨大佐周一兵刘海映陈军倪琦谷坚王刚
Owner DALIAN OCEAN UNIV
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