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A recyclable sludge sludge water separation material and its application

A mud-water separation and sludge technology, applied in sewage/sludge fertilizer, water/sludge/sewage treatment, application, etc., can solve the problems of plant root rot, consumption of mineral resources, high concentration of aluminum ions, etc., and achieve a well-developed plant root system , high water transparency and large storage capacity

Active Publication Date: 2021-07-27
安徽润道生态环境工程科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing mud-water separation materials can make the water content of the sludge below 60%, but the mud-water separation is not complete, and there are still sludge components in the effluent
Moreover, a large amount of lime, iron salt, and aluminum salt are used as mud-water separation materials, which not only consume a large amount of valuable mineral resources, but also lead to high concentrations of calcium ions, iron ions, and aluminum ions in the mud cake, resulting in rotten roots of plants and cannot be used as organic soil. Resource utilization, only landfill
However, sludge contains a large amount of useful substances such as nitrogen, phosphorus, and humus. Landfilling not only occupies land but also wastes resources.

Method used

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  • A recyclable sludge sludge water separation material and its application
  • A recyclable sludge sludge water separation material and its application
  • A recyclable sludge sludge water separation material and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] According to the mass ratio of 35:15:7.5:7.5:50, weigh the zeolite powder, corn stalks (filtered through a 10-mesh sieve), calcium carbonate, diatomaceous earth, and MT, and mix them evenly.

[0029] Take 1000ml of a certain municipal sludge, add 60g of the above mud-water separation material, stir evenly, let it stand for 5 minutes, press filter for dehydration, and test the transparency of the effluent. The results are shown in Table 1. Take 1000ml of sludge from the same source, add 60g of existing mud-water separation materials on the market, stir evenly, let stand for 5 minutes, press filter for dehydration, and test the transparency of the effluent. The results are shown in Table 1. It can be seen from the comparison that after conditioning by the material of the present invention, the transparency of the filter press effluent is higher than that of the sludge effluent conditioned by the existing material, indicating that the material of the present invention is mo...

Embodiment 2

[0031] According to the mass ratio of 35:15:7.5:7.5:0.4:0.1:50, weigh corncob ash, cottonseed hulls (the crushed material is filtered through a 10-mesh sieve), magnesium oxide, gypsum, BFA, magnesium carbonate, and MT and mix them evenly.

[0032] Take 1000ml of the sludge used in Example 1, add 60g of the above-mentioned mud-water separation material, stir evenly, let stand for 5 minutes, press filter for dehydration, and test the transparency of the effluent, the results are shown in Table 1. Compared with the transparency of sludge effluent conditioned by existing mud-water separation materials on the market, it can be seen that the transparency of sludge press-filtered water conditioned by patented materials is higher, indicating that the material of the present invention is more conducive to mud-water separation than existing mud-water separation materials on the market. The mud and water are separated more thoroughly. The dehydrated sludge is planted with Chlorophytum, a...

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PUM

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Abstract

The invention discloses a recyclable sludge water separation material and its application, which comprises the following components in parts by mass: 30-50 parts of porous adsorption material, 10-20 parts of soil modification material, and 10 parts of enzymatic activity framework material ‑15 parts, 33‑59 parts of flocculation net catch material. The mud-water separation material of the present invention not only separates mud-water thoroughly, but also the mud cake can be utilized as organic soil resources for planting flowers, turf, nursery and other landscaping plants, and can also be used for planting economic crops.

Description

technical field [0001] The invention relates to a resourceable sludge sludge water separation material and application thereof, belonging to the field of sludge treatment. Background technique [0002] The moisture content of sludge produced after sewage treatment in municipal, printing and dyeing, metallurgical and other industries is generally above 90%, and the moisture content of sludge produced by river dredging is also above 80%. Such sludge is bulky and heavy, and it is inconvenient to transfer , And this kind of sludge can not be used or landfilled. According to the relevant regulations of our country, the moisture content of sludge must be below 60% before it can be landfilled. At present, in our country, mud-water separation materials are generally added to the sludge for pre-conditioning, and then the water is pressed out with a filter press, so that the moisture content of the sludge reaches below 60%, and then it is used or landfilled. The existing mud-water se...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F11/148C05G3/00C05G3/80
CPCC02F11/14C05F5/002C05G3/00C05F7/00C05F11/00
Inventor 朱守诚朱棣杰钱洁潘佳驹陈天泽黄家榜张静
Owner 安徽润道生态环境工程科技有限公司
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