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Ecological, environmental protective composite water treatment agent

A water treatment agent, an environmentally friendly technology, applied in the field of water treatment, can solve the problems of large amount of flocs, strong toxicity and carcinogenicity, and single function, and achieve the effects of fast floc settlement, excellent flocculation performance, and simple process

Inactive Publication Date: 2007-07-25
HEBEI AGRICULTURAL UNIV.
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As far as the overall production and application of water treatment agents in my country is concerned, there are still some deficiencies, which are mainly manifested in: the existing inorganic water treatment agents have single functions, limited range of applicable water bodies, and large usage volume, flocculent The volume is large, the sedimentation speed is slow, the sludge dehydration is difficult, and the final treatment cost of the sludge is high, especially the aluminum ions remaining in the water body, which pose potential hazards to plants, aquatic organisms and human bodies; organic synthetic polymers Water treatment agents, such as polyacrylamide, not only have high production costs, but also cause great harm to human health during the production and synthesis process. After use, most polymers are difficult to be degraded by the environment. Existence, causing secondary pollution to the environment. Although a small part of polymers can be degraded into small molecules such as acrylamide monomers, their toxicity and carcinogenicity are very strong
It can be said that the existing inorganic water treatment agents and organic synthetic polymer water treatment agents, in the process of production or use, show ecological unsafety and secondary pollution to the environment, which have become more and more serious. more widespread concern and concern

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The sewage at the water inlet of a water treatment plant is taken. The main indicators of water quality before treatment are: biological oxygen consumption (BOD 5 ) is 125mg / L, chemical oxygen demand (COD cr ) is 157mg / L, the total nitrogen content (T-N) is 25.4mg / L, and the total phosphorus content (T-P) is 3.1mg / L. The water treatment agent used is prepared through the following steps: firstly, according to the mass percentage ratio, 40% of reeds, 8% of hyphae hyphae, 32% of cactus and 20% of lotus leaves are crushed and stirred, and then soaked in deionized water After 12 days, extract 25% of the concentrated solution, then mix 50% zeolite, 22% sepiolite and 28% diatomaceous earth according to the mass percentage ratio, grind to 400 mesh at a temperature of 150-350°C, and stir evenly Finally, take 1.5 parts and 1 part of 30% concentrated liquid in the mass percentage ratio, add it to a high-speed kneader, heat to 85 ° C, and stir for 27 minutes to prepare an ecologi...

Embodiment 2

[0020] Taking sewage from a paper mill, the main indicators of water quality before treatment are: SS is 1067mg / L, COD cr 4800mg / L, 1.7mg / L volatile phenol, 15.1mg / L sulfide, 96 chromaticity. The water treatment agent used is prepared by the following method. First, 30% reeds, 15% hyphae hyphae, 35% cactus and 20% lotus leaves are crushed and stirred according to the mass percentage ratio, and then soaked in deionized water After 13 days, extract 25% of the concentrated solution, then mix 55% zeolite, 20% sepiolite and 25% diatomaceous earth according to the mass percentage ratio, grind to 380 mesh at a temperature of 200-300°C, and stir evenly Finally, according to the mass percentage ratio of 1.5 parts and 1 part of 25% concentrated solution, add it into a high-speed kneader, heat to 85 ° C and stir for 20 minutes to prepare an ecological and environmental protection composite water treatment agent, according to the required amount of water treatment 0.65% of the above-ment...

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Abstract

This invention provides an environmentally friendly composite water-treatment agent, which is prepred from Phargmites communis, Eichhornia crassipes, Opuntia ficusindica, Nelumbo nucifera, zeolite, sepiolite and diatomite. The preparation method and the composition are decided according to the characteristics of wastewater. Compared with the present water-treatment agents, the composite water-treatment agent in this invention is economic, efficient and environmentally friendly, and has such advantages as wide applications and no secondary pollution. The water-treatment agent can be used to treat industrial wastewater, domestic wastewater, agricultural subsiding water, domestic water sources and city water-supply systems.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to an ecological and environment-friendly composite water treatment agent. Background technique [0002] With the rapid development of my country's social economy, the discharge of a large amount of sewage not only increases the consumption of water treatment agents sharply, but also puts forward higher requirements for the performance of water treatment agents. As far as the overall production and application of water treatment agents in my country is concerned, there are still some deficiencies, which are mainly manifested in: the existing inorganic water treatment agents have single functions, limited range of applicable water bodies, and large usage volume, flocculent The volume is large, the sedimentation speed is slow, the sludge dehydration is difficult, and the final treatment cost of the sludge is high, especially the aluminum ions remaining in the water ...

Claims

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Application Information

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IPC IPC(8): C02F1/52C02F1/28
Inventor 路金喜赵国先赵胜利梁素韬刘燕冯利军杜贵荣刘宏权张西平刘玉春吴现兵陈建起关珂张文丽
Owner HEBEI AGRICULTURAL UNIV.
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