Ecological blanket for water body remediation and application thereof
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A technology for water body restoration and ecological blanket, which is applied in the fields of natural water body treatment, water pollutants, biological treatment devices, etc., can solve the problems of high cost, unfavorable promotion and application, poor effect, etc. Actionable effect
Active Publication Date: 2022-01-21
CHINA URBAN CONSTR DESIGN & RES INST CO LTD
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Problems solved by technology
However, for water ecological restoration and sewage treatment, there are problems such as poor effect and high cost, which is not conducive to popularization and application
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preparation example Construction
[0038] In one embodiment of the present invention, the preparation method of negative magnetically modified biochar comprises the following steps:
[0039] (a) washing agricultural and forestry wastes with distilled water, drying at 60°C, and shearing to obtain primary biomass particles;
[0040](b) Put the raw biomass particles into the muffle furnace for pyrolysis and carbonization, under the protection of nitrogen, heat up to 300-600°C at a heating rate of 10-15°C / min, and then pyrolyze for 1-3h to obtain biochar;
[0041] (c) Using the co-precipitation method, the above biochar and FeCl 3 ·6H 2 O mixed according to the mass ratio of 1:1-1:2 and sonicated for 5-15min; then heated to 60°C-80°C and kept for 30-60min, 2 Add 1:1-2:1 FeSO to the above mixture under protection 4 4H 2 O, stirring for 10-30min, cooling, N 2 Add NaOH solution dropwise under protection until the pH is 10-11 to form Fe(OH) 3 Precipitate; stir for 1-2 hours, cover with plastic wrap, let it stand ...
Embodiment 1
[0063] Embodiment 1 A kind of ecological blanket for water body restoration
[0065] The planting layer is soil mixed with seeds and submerged plants such as bitter grass, hornwort algae, foxtail algae and black algae are planted.
[0066] The slow-release nutrient layer is compounded and combined with agricultural and forestry waste biochar and slow-release oxygen agent according to the volume ratio of 3:2.
[0067] (1) Preparation of agricultural and forestry waste biochar:
[0068] (a) Cleaning the screened agricultural and forestry wastes (stalks, corncobs, peanut shells, leaves, branches) with distilled water, and drying in an oven at a drying temperature of 60°C;
[0069] (b) After properly shearing the cleaned and dried waste biomass, the primary biomass particles with uniform size are obtained;
[0070] (c) Put the screened biomass particles into a muffle...
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Abstract
The invention provides an ecological blanket for water body remediation and application thereof, and belongs to the technical field of black and odorous water body treatment, water body ecological remediation and environmental protection. The ecological blanket comprises a waterproof layer, a multifunctional repairing layer, a slow-release nutrition layer and a planting layer which are sequentially arranged from bottom to top. The waterproof layer, the multifunctional repairing layer, the slow-release nutrition layer and the planting layer are detachably connected, wherein the multifunctional repairing layer is prepared from waste bricks, limestone and negative magnetic modified biochar. The ecological blanket is environmentally friendly, reasonable in structural design, flexible to lay, high in operability, convenient to maintain, low in construction cost and convenient to apply and popularize, and the problems that in black and odorous water and bottom mud, the content of pollutants such as nitrogen and phosphorus and heavy metal is high, the dissolved oxygen content is low, and the underwater ecological environment is poor can be effectively solved.
Description
technical field [0001] The invention belongs to the technical fields of black and odorous water treatment, water ecological restoration and environmental protection, and in particular relates to an ecological blanket for water restoration and its application. Background technique [0002] As an extreme state of water pollution, black and odorous water bodies are caused by the excessive intake of pollutants in rivers or lakes, resulting in an imbalance of reoxygenation and oxygen consumption in the water body, resulting in excessive production of humus and other "black and odorous" pollutants, making the water ecosystem self-purifying The function has been severely damaged, and it has extremely bad effects on people's lives, urban ecology and landscape construction. Urban black and odorous water bodies are characterized by high levels of pollutants such as COD, ammonia nitrogen, iron, and sulfur. At present, although black and odorous water bodies have been basically elimina...
Claims
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Application Information
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