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Multi-effect sewage treatment agent and method for treating sewage by using same

A sewage treatment agent and sewage technology, applied in water/sewage treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problems of high energy consumption, semi-stop production, high energy consumption, etc., and achieve raw material Wide range of sources, low cost and simple preparation process

Inactive Publication Date: 2015-10-28
刘雷
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, for a period of time, due to high energy consumption and high operating costs, the construction of urban sewage treatment plants in my country has been hindered. At the same time, some completed sewage treatment plants have been in a state of shutdown and semi-stop production for a long time due to high energy consumption.
For a long period of time in the future, energy consumption will become the bottleneck of urban sewage treatment

Method used

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  • Multi-effect sewage treatment agent and method for treating sewage by using same

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Effect test

Embodiment 1

[0028] A multi-effect sewage treatment agent, the raw materials according to weight parts are: 80 parts of activated sludge from urban sewage treatment plants, 40 parts of attapulgite, 40 parts of pinaceae plant waste, 7 parts of concentrated sulfuric acid with a mass concentration of 98%, Calcium oxide 20 parts, polyaluminum phosphate 30 parts, polyphosphorus ferric chloride 25 parts.

[0029] The preparation method of described multi-effect sewage treatment agent, concrete steps are:

[0030] (1) Add water to the activated sludge of urban sewage treatment plant to make its water content 60%; the particle size of the attapulgite is pulverized to 30 orders; the particle size of the pinaceae plant waste is pulverized to 300 orders;

[0031] (2) the attapulgite obtained in the step (1) is uniformly mixed with concentrated sulfuric acid, and the first mixed product is obtained after stacking for 12 hours;

[0032] (3) Mix the first mixed product with the activated sludge from th...

Embodiment 2

[0036] A multi-effect sewage treatment agent, the raw materials according to weight parts are: 100 parts of activated sludge from urban sewage treatment plants, 60 parts of attapulgite, 60 parts of pinaceae plant waste, 5 parts of concentrated sulfuric acid with a mass concentration of 95%, Calcium oxide 15 parts, polyaluminum phosphate 25 parts, polyphosphorus ferric chloride 20 parts.

[0037] The preparation method of described multi-effect sewage treatment agent, concrete steps are:

[0038](1) Add water to the activated sludge of urban sewage treatment plant to make its water content 75%; the particle size of the attapulgite is pulverized to 65 orders; the particle size of the pinaceae plant waste is pulverized to 200 orders;

[0039] (2) the attapulgite obtained in the step (1) is uniformly mixed with concentrated sulfuric acid, and the first mixed product is obtained after stacking for 18 hours;

[0040] (3) Mix the first mixed product with the activated sludge of the ...

Embodiment 3

[0044] A multi-effect sewage treatment agent, the raw materials according to weight parts are: 120 parts of activated sludge from urban sewage treatment plants, 80 parts of attapulgite, 80 parts of pinaceae plant waste, 3 parts of concentrated sulfuric acid with a mass concentration of 90%, Calcium oxide 10 parts, polyaluminum phosphate 20 parts, polyphosphorus ferric chloride 15 parts.

[0045] The preparation method of described multi-effect sewage treatment agent, concrete steps are:

[0046] (1) Add water to the activated sludge of the urban sewage treatment plant to make its water content 90%; the particle size of the attapulgite is pulverized to 100 orders; the particle size of the pinaceae plant waste is pulverized to 100 orders;

[0047] (2) the attapulgite obtained in the step (1) is uniformly mixed with concentrated sulfuric acid, and the first mixed product is obtained after stacking for 12 hours;

[0048] (3) Mix the first mixed product with the activated sludge f...

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Abstract

The invention discloses a multi-effect sewage treatment agent and a method for treating sewage by using the same. The raw materials of the multi-effect sewage treatment agent include activated sludge from an urban sewage treatment plant, attapulgite, pinaceae plant waste, concentrated sulfuric acid, calcium oxide, polymeric aluminum phosphate, polymeric phosphate-ferric chloride. The raw materials of the multi-effect sewage treatment agent are wide in sources and low in cost. A main raw material can be obtained by compositing the activated sludge from the urban sewage treatment plant, the pinaceae plant waste and the acidified attapulgite under the microwave effect, and then the main raw material is mixed with the calcium oxide, the polymeric aluminum phosphate and the polymeric phosphate-ferric chloride sequentially to obtain the multi-effect sewage treatment agent. The multi-effect sewage treatment agent is simple in preparation process and low in cost. After the multi-effect sewage treatment agent is applied to sewage treatment, the quality of discharged sewage after treatment is far higher than the national primary standard, and the activated sludge, at the bottom of a comprehensive treating pond, from the urban sewage treatment plant, can be used for preparation of organic fertilizers, biomass fuel and / or the multi-effect sewage treatment agent.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a multi-effect sewage treatment agent and a method for treating sewage using the same. Background technique [0002] Environmental protection directly affects the sustainable development of our national economy. In the past decades of economic development in our country, due to neglect of environmental protection in development, the current environmental pollution is very serious. Although a large number of control measures have been taken in recent years, the trend of further deterioration of the environment continues. my country is one of the countries with the most serious environmental pollution in the world. Whether it is a city or a village, our country's atmosphere, rivers, lakes, oceans and soil are all polluted to varying degrees. Five cities including Guiyang, Chongqing, Beijing, and Lanzhou are among the top ten cities with the worst air pollution in the world. Among ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/00C02F9/04
Inventor 刘雷
Owner 刘雷
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