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Application of nanomaterials in ecological restoration of low temperature water body and ecological composite nano restoration method of low temperature water body
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A nanomaterial and nanocomposite technology, applied in the field of water treatment, can solve problems such as the influence of bioremediation effect, and achieve the effect of maintaining good treatment effect, improving microbial activity, and improving activity.
Inactive Publication Date: 2016-03-30
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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Problems solved by technology
However, due to the low water temperature in winter in northern my country, the bioremediation effect is seriously affected
Method used
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Embodiment 1
[0027] 1. Preparation of nanocomponents
[0028] 1) Fe 2 o 3 , ZrO 2 , SiO 2 、TiO 2 Oxide materials are mixed in a mass ratio of 6:2:1:1;
[0029] 2) Bake the mixture at a high temperature of 1320°C for 10 hours, keep it warm for 2 hours, and cool to room temperature;
[0030] 3) Take out the superfine pulverization and sieve to obtain ultrafine powder with a particle size of 40-100 nanometers.
[0031] Disperse the above processed nano-scale ultrafine energy powder evenly in the melt or solution of high polymers (polyesters, polyamides, polypropylenes, polyacrylonitriles, etc.), and then use conventional melting Spinning by conventional or wet method to make fibers, and then process the fibers into new energy fiber fabrics through spinning and weaving. The content of nanomaterials in the fiber fabrics is 1-5 / 1000 (mass ratio).
[0032] 2. Laboratory test 40L scale,
[0033] (1) The bacteria used in the test is the dominant compound bacterial agent (CN200910266194.9 di...
Embodiment 2
[0039] Example 2 Nansha River Treatment Project in Haidian District, Beijing
[0040] Prepare nanofabric with embodiment 1
[0041] The water area has already been dosed with superior compound bacteria (CN200910266194.9 discloses "deodorizing dominant bacteria and compound bacteria and its application), but it is not added in winter, but added twice in May and June. 10km, water depth 2m, river width 100m-150m, 20,000 cubic meters of sewage flow into the river every day.
[0042] The step of preparing nanofiber components is to process the above-mentioned energy fiber fabric according to the size of a resin tube with a diameter of 10cm and a length of 2m and put it into a resin tube. Each group is composed of 5 resin tubes, and the distance between each tube is 20cm. , At the same time, in order to improve the mechanical strength of each group, 2 corrosion-resistant stainless steel plates are used for reinforcement, thus forming an energy fiber module with a width of 1m and a ...
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Abstract
The invention relates to the field of water body treatment, and specifically relates to an application of a nano-grade material in low-temperature water body ecological reparation and a low-temperature water body ecological composite nano-grade reparation method. The method comprises a step for adding a deodorizing microbial agent and a nano-grade material into water body under a low-temperature condition. Energy of the nano-grade material can penetrate into the nucleus of microbes for finishing DNA and RNA, and for promoting cell normal division and proliferation. Therefore, dormant-state microbes are activated, and microbe activities in natural water bodies and water treatment systems are improved. Especially, the treatment effect can be well kept in winters. With a biological chain reparation microbial agent and with the assistance of a novel nano-grade material technology, low-temperature water body purification reparation in winter is realized.
Description
technical field [0001] The invention relates to the field of water treatment, in particular to the application of nanomaterials in the ecological restoration of low-temperature water bodies and the ecological composite nano-remediation method of low-temperature water bodies. Background technique [0002] At present, the surface water pollution in my country is very serious. More than 70% of the rivers and lakes fail to meet the surface water quality standard III, and nearly 25% of the water is inferior to the fifth category. Water pollution has caused serious damage to the aquatic ecosystem, weakening its self-purification ability, or even extinction. Among them, black and smelly rivers are ubiquitous, which has caused a major impact on human health. The incidence of local people has increased significantly, and the public has responded strongly, which seriously restricts the sustainable development of my country's social economy. problem. [0003] Water body restoration te...
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