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A method for treating landscape water with a treatment agent

A landscape water and treatment agent technology, applied in water/sewage treatment, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve problems such as complex mineral composition, achieve good treatment effect, high ecological safety, The effect of restoring ecological balance

Active Publication Date: 2018-07-17
SOUTHWEST UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Purple parent rock is a kind of sedimentary rock widely distributed in Southwest China. Its mineral composition is more complex than that of gravel. As an important inorganic polymer flocculant, polyferric sulfate (PFS) is used in the purification of industrial and agricultural wastewater and domestic sewage. However, there are few studies on the application of polyferric sulfate in the denitrification and phosphorus removal of landscape water bodies.

Method used

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  • A method for treating landscape water with a treatment agent
  • A method for treating landscape water with a treatment agent
  • A method for treating landscape water with a treatment agent

Examples

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Effect test

Embodiment 1

[0022] A composite treatment agent for landscape water, comprising polymeric ferric sulfate and purple parent rock; the polymeric ferric sulfate is prepared from solid polymeric ferric sulfate purchased from a company into a polymeric ferric sulfate solution with a concentration of 10wt%; the purple parenteral The rock is the purple parent rock of the Penglai Town Formation in Banan, Chongqing, and is made into 0.25mm purple parent rock powder.

[0023] Landscape water to be treated (slightly polluted landscape water): initial total nitrogen and total phosphorus concentrations were 2.37mg / L and 0.37mg / L, and algae concentrations were 22.4×10 6 L -1 , with a turbidity of 7.2NTU; put in 7 goldfish / L, and 3 goldfish survived a week later.

[0024] The method for treating landscape water is: first add polyferric sulfate to the landscape water to be treated at a ratio of 20mg / L, then add the powder collected from purple parent rock to the water body at a ratio of 5g / L; stir rapidl...

Embodiment 2

[0027] A composite treatment agent for landscape water, comprising polymeric ferric sulfate and purple parent rock; the polymeric ferric sulfate is prepared from solid polymeric ferric sulfate purchased from a company into a polymeric ferric sulfate solution with a concentration of 10wt%; the purple parenteral The rock is the purple parent rock of the Penglai Town Formation in Banan, Chongqing, and is made into 0.25mm purple parent rock powder.

[0028] Landscape water to be treated (moderately polluted landscape water): the initial total nitrogen and total phosphorus concentrations were 8.74mg / L and 0.94mg / L respectively, and the algae concentration was 80.5×10 6 L -1 , the turbidity is 20.5NTU, put 7 goldfish / L, and one goldfish survives one week later.

[0029] The method for treating landscape water is: first add polyferric sulfate to the landscape water to be treated at a ratio of 20mg / L, then add the purple parent rock powder to the landscape water body to be treated at...

Embodiment 3

[0032] A composite treatment agent for landscape water, comprising polymeric ferric sulfate and purple parent rock; the polymeric ferric sulfate is prepared from solid polymeric ferric sulfate purchased from a company into a polymeric ferric sulfate solution with a concentration of 10wt%; the purple parenteral The rock is the purple parent rock of the Penglai Town Formation in Banan, Chongqing, and is made into 0.25mm purple parent rock powder.

[0033] Landscape water to be treated (severely polluted landscape water): the initial total nitrogen and total phosphorus concentrations were 16.93mg / L and 1.13mg / L respectively, and the algae concentration was 120.7×10 6 L -1 , the turbidity was 50.2NTU, and 7 goldfish / L were put into it, and no goldfish survived after one week.

[0034] The method of treating landscape water is: first add polyferric sulfate to the landscape water to be treated at a ratio of 20mg / L, and then add purple parent rock powder to the water body at a ratio...

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Abstract

The invention provides a compound treatment agent for a landscape water body. The compound treatment agent comprises polyferric sulfate and purple parent rock. The compound treatment agent provided by the invention has the advantages of low cost, wide source and environmental friendliness, can be used for treating landscape water bodies different in pollution degree and realizes high purifying efficiency and good treatment effect, wherein the removal efficiency of nitrogen and phosphorus is high, and the removal rate of total nitrogen in the seriously-polluted landscape water body can reach 57.94% while the removal rate of total phosphorus can reach 83.63%; and the damaged ecological balance can be effectively restored so that the ecological system resumes virtuous cycle.

Description

technical field [0001] The invention relates to a composite flocculant for landscape water body and its application method. Background technique [0002] In recent years, the construction of urban landscape water bodies has become more and more popular, but the self-purification function, circulation capacity and biological dynamic balance of landscape water bodies are weak, coupled with the unreasonable discharge of domestic sewage, resulting in eutrophication of many landscape water bodies, seriously affecting Surrounding residential and urban environments. Numerous studies have shown that the root cause of eutrophication in urban landscape water is the excessive content of nitrogen and phosphorus nutrients. Therefore, reducing nitrogen and phosphorus in water is the focus of landscape water eutrophication control, especially phosphorus, which is a controlling factor of water eutrophication. Currently, the most effective method for removing phosphorus from landscape wate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/52
CPCC02F1/5236
Inventor 李振轮黄雪娇
Owner SOUTHWEST UNIV
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