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Treatment method and novel composite water purifying agent for purifying water of micro-polluted water sources

A technology of water purification and treatment method, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, flocculation/sedimentation water/sewage treatment, etc. Improve the effect of increasing alkalinity and reducing load

Inactive Publication Date: 2015-09-09
叶芳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some patents also have research on micro-pollution, such as patents CN201010248701 and CN201010248705, they consider more about the consideration of further removal of turbidity and disinfection, and what kind of water purifier to use for micro-polluted water sources, the current patents are involved in less
However, since the water quality of slightly polluted water sources seriously affects people's drinking water safety, the market now needs a composite water purifier that can not only take into account flocculation and sedimentation, but also has the ability to treat slightly polluted water sources.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A treatment method for purifying raw water, comprising the following technical steps:

[0050] (1) Raw water is pumped from rivers or reservoirs to the water distribution well of the water purification plant for effective water distribution, and then enters the sedimentation tank for sedimentation treatment; at this stage, compound water purifiers are added to remove pollutants from slightly polluted water sources to ensure effective After the compound water purifier is added to the wastewater, mix it evenly and let it stand for 40-50 minutes. The dosage of the compound water purifier is 25-35mg / L water;

[0051] (2) The raw water after precipitation treatment enters the filtration stage to further reduce pollutants;

[0052] (3) Afterwards, the raw water can be subjected to the advanced treatment stage of ozone activated carbon, in order to meet the 106 effluent water quality indicators of the sanitary standard GB 5749-2006 for drinking water;

[0053] (4) The sludge ...

Embodiment 2

[0062] The treatment method of this embodiment is the same as that of Example 1, and the novel composite water purifier used in this embodiment consists of the following components in parts by weight:

[0063] Yellow mud powder: 15, potassium permanganate: 0.8, chitosan: 8,

[0064] Zeolite powder: 8, sodium hypochlorite: 3, aluminum chloride: 7,

[0065] Magnesium Oxide: 13, Sodium Bicarbonate: 8, Calcium Oxide: 10,

[0066] Carbon particles: 15, iron powder: 15, polyaluminum iron chloride: 3.

[0067] In the above technical solution, the composite water purifying agent of the present invention can be used for micro-polluted water treatment, and the dosage is controlled at 25-35 mg / L.

[0068] The above-mentioned effluent from the sump after the reaction of the composite water purifying agent was taken to measure the potassium permanganate index, and the following results were obtained: the removal rate of the potassium permanganate index was greater than 70%.

Embodiment 3

[0070] The treatment method of this embodiment is the same as that of Example 1, and the novel composite water purifier used in this embodiment consists of the following components in parts by weight:

[0071] Yellow clay powder: 20, potassium permanganate: 1, chitosan: 10,

[0072] Zeolite Powder: 10, Sodium Hypochlorite: 5, Aluminum Chloride: 8,

[0073] Magnesium Oxide: 15, Sodium Bicarbonate: 10, Calcium Oxide: 15,

[0074] Carbon particles: 20, iron powder: 20, polyaluminum iron chloride: 5.

[0075] In the above technical solution, the composite water purifying agent of the present invention can be used for micro-polluted water treatment, and the dosage is controlled at 25-35 mg / L.

[0076] The above-mentioned water from the sump after the reaction of the composite water purifying agent was used to measure the pollutant-potassium permanganate index, and the following results were obtained: the removal rate of the potassium permanganate index was greater than 70%.

[0...

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Abstract

The invention discloses a treatment method and a novel composite water purifying agent for purifying water of micro-polluted water sources. The treatment method includes steps of (1), effectively distributing raw water which is delivered from rivers or reservoirs to water distributing wells of water purification plants by pumps, then feeding the raw water in sedimentation tanks to carry out sedimentation treatment on the raw water, adding 25-35mg of the composite water purifying agent into 1L of waste water at stages, removing pollutants in the micro-polluted water sources by the composite water purifying agent so as to effectively guarantee removal effects, uniformly mixing the composite water purifying agent with the waste water, and then allowing the waste water to stand still for 40-50min; (2), further reducing pollutants in the raw water at filtering stages after sedimentation treatment is carried out on the raw water; (3), allowing advanced treatment stages to be carried out on the raw water by the aid of ozone and activated carbon so as to expectedly meet 106 outlet water quality indexes of drinking water sanitation standards GB 5749-2006; (4), dewatering sludge in a concentrated manner and allowing the sludge to be outwardly conveyed to landfill. The sludge is generated at the various stages.

Description

technical field [0001] The invention relates to the technical field of water purifying agents for water treatment, in particular to a composite water purifying agent used to remove organic pollutants in slightly polluted water sources. Background technique [0002] In recent years, with the development of industry, the acceleration of urbanization and the increase in the types and quantities of agricultural chemicals, many water sources have been polluted to varying degrees; With higher requirements for water quality, micro-pollution is getting more and more attention. However, the existing conventional treatment process for slightly polluted water (coagulation→sedimentation→filtration→disinfection) cannot effectively remove organic matter, ammonia nitrogen and other pollutants in slightly polluted water source water, and liquid chlorine is easy to combine with humus in raw water to produce disinfection by-products. DBPs directly threaten the health of drinkers and cannot m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F1/52
Inventor 叶芳
Owner 叶芳
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