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Small-sized device for bionomic control of water body algae blooms and preparation method thereof

A water body, small-scale technology, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of rare reports on the prevention and control of water blooms in dry aquatic plants, and achieve storage and construction Simple, low cost, stable effect

Inactive Publication Date: 2010-05-19
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, most of the research in this field focuses on the laboratory research on allelopathic algae inhibition of living aquatic plants, but there are few reports on the practice of water bloom control on dried aquatic plants after harvest.

Method used

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  • Small-sized device for bionomic control of water body algae blooms and preparation method thereof
  • Small-sized device for bionomic control of water body algae blooms and preparation method thereof
  • Small-sized device for bionomic control of water body algae blooms and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0047] A simple hanging type ecological prevention and control device for algal blooms suitable for small water bodies, which includes three parts: a main rope (1), a plant algae suppression unit (2) and an algae biofilm water purification unit (3), wherein: the plant The algae-inhibiting unit (2) is composed of dried plant fragments (6) with algae-inhibiting allelopathic activity, water-resistant small mesh sacks (5), and water-resistant nylon ropes (4), wherein the dried plant fragments (6) are contained in water-resistant Among the small mesh sack (5), the water-resistant small mesh sack (5) is sealed with a water-resistant nylon rope (4) and tied on the main rope (1);

[0048] The algae biofilm water purification unit (3) is composed of porous polymer light suspension filler (9), algae biofilm (7), water-resistant nylon rope (4), water-resistant small nylon mesh bag (8) (built-in suitable weight small stones), in which the algae biofilm (7) is attached to the surface of th...

Embodiment 2

[0051] A preparation method of a small water body algal bloom ecological prevention and control device specifically comprises the following steps:

[0052] A, the construction of plant algae inhibition unit (2):

[0053] a. Raw material preparation: wash the collected complete calamus plants, wild mugwort, and barley straw, and then air-dry them naturally for 5-8 days, so that the moisture content of calamus is lower than 35%, the moisture content of wild mugwort is lower than 20%, and the moisture content of barley straw If it is less than 5%, the plant body should be stored in a cool and ventilated place after air drying;

[0054] B, raw material bagging: the dried plant body that step a gains is crushed into pieces (6) (the size of the pieces is advisable not to leak from the sack), and put into a small mesh sack (5) with better water resistance and corrosion resistance , each bag is filled with 3-5 kg ​​of dried calamus plant body or 3-5 kg ​​of dried mugwort plant body o...

Embodiment 3

[0068] 1. Preliminary preparation:

[0069] (1) Field investigation: The test site is an artificial landscape lake in Wuhan University, with a water area of ​​about 500m2 2 , the average water depth is 2m, and it has been polluted by moderate eutrophication;

[0070] (2) Preparation of raw materials: the calamus in the plant algae suppression unit was collected from a calamus plantation in the suburbs of Wuhan; the mugwort was collected from the suburban wasteland; the barley straw was collected from the suburban grain production base. Air-dry for 10-15 days; smash into debris after air-drying; use coarse small-mesh water-resistant sacks for bagging; use water-resistant nylon ropes for flexible links with the main rope; algal biofilms in hanging algal bloom control appliances purify water The unit is made of polyethylene (or polypropylene) semi-soft porous filler as raw material; the light water-resistant nylon rope is used as the connecting material between the algal biofilm...

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Abstract

The invention discloses a device for the bionomic control of water body algae blooms and a preparation method thereof. A plant algae inhibiting unit consists of dry plant body fragments, a waterproof small-mesh gunny bag and a waterproof nylon rope; the waterproof small-mesh gunny bag is sealed by the waterproof nylon rope and is tied on a main rope; a phycomycete biological film water purification unit consists of a porous polymer light suspended filler, a phycomycete biological film, a waterproof nylon rope and a waterproof small-sized nylon mesh bag; the waterproof small-sized nylon mesh bag is tied at the bottom of the porous polymer light suspended filler; and one end of the waterproof nylon rope is tied on the top part of the porous polymer light suspended filler, while the other end is tied on the main rope. The preparation method comprises the following steps: a, collecting integral calamus plants from field, and cleaning and naturally drying the calamus plants; b, crushing the dried calamus plants obtained in the step a into fragments, and filling the fragments into the gunny bag; c, adopting the porous polymer light suspended filler; d, clipping the filler; e, performing pretreatment on the filler; and f, combining the plant algae inhibiting unit and the phycomycete biological film water purification unit. The device has the advantages of readily available raw materials, low cost, no secondary pollution and obvious effect.

Description

technical field [0001] The invention belongs to the technical field of water environment treatment and ecological restoration, and more particularly relates to a small water body (pond, urban artificial landscape water body) algal bloom ecological prevention and control device, and also relates to a preparation method of a small water body algal bloom ecological prevention and control device. The invention is suitable for ecological control of algal blooms in small eutrophic water bodies and ecological restoration of water bodies. Background technique [0002] Eutrophication of water bodies is a common problem in the current world water environment. The rapid economic growth has brought a heavy load to various natural water bodies. Under the combined effect of foreign substances and endogenous pollution, the nutrient salt in the water body is excessive, resulting in the water body being in a state of eutrophication. The increasingly serious eutrophication of water bodies le...

Claims

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Application Information

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IPC IPC(8): C02F3/32C02F3/10
CPCY02W10/10
Inventor 胡光济侯浩波张维昊周旻董峰
Owner WUHAN UNIV
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