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Sewage treatment agent with slow release function and preparation method thereof

A technology of sewage treatment agent and slow-release agent, which is applied in water/sewage treatment, water/sludge/sewage treatment, flocculation/sedimentation water/sewage treatment, etc. It can solve difficult problems such as reducing losses and prolonging the duration The time of release, the effect of reducing the dissolution rate

Active Publication Date: 2019-07-23
襄阳先创环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If it is necessary to remove phosphorus from the lower layer of sewage, it is necessary to continuously add chemical agents, which is the most difficult to achieve for most of the existing decentralized sewage treatment sites, because most of the decentralized sewage treatment sites are unmanned. Duty type

Method used

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  • Sewage treatment agent with slow release function and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The invention provides a kind of sewage treatment agent with sustained release function, comprising the following components corresponding to the following parts by weight:

[0029] Phosphorus removal flocculant 30 parts;

[0030] 15 parts of sustained release agent;

[0031] 50 parts of solid carrier.

[0032] As a further improvement of the present invention, the phosphorus removal flocculant includes the following components corresponding to the following weight ratios: 0.2 parts of polyferric sulfate; 10 parts of polydimethyldiallylammonium chloride.

[0033] As a further improvement of the present invention, in parts by weight, 1 part of hydroxyoctanoic acid is also included.

[0034] As a further improvement of the present invention, the slow-release agent is cellulose ether.

[0035] As a further improvement of the present invention, the cellulose ether includes hydroxypropyl methylcellulose ether.

[0036] As a further improvement of the present invention, c...

Embodiment 2

[0044] The invention provides a kind of sewage treatment agent with sustained release function, comprising the following components corresponding to the following parts by weight:

[0045] Phosphorus removal flocculant 45 parts;

[0046] 25 parts of sustained release agent;

[0047] 60 parts of solid carrier.

[0048] As a further improvement of the present invention, the phosphorus removal flocculant includes the following components corresponding to the following weight ratios: 0.4 parts of polyferric sulfate; 20 parts of polydimethyldiallylammonium chloride.

[0049] As a further improvement of the present invention, 5 parts by weight of hydroxyoctanoic acid are also included.

[0050] As a further improvement of the present invention, the slow-release agent is cellulose ether.

[0051] As a further improvement of the present invention, the cellulose ether includes hydroxypropyl methylcellulose ether or a combination with methylcellulose ether.

[0052] As a further imp...

Embodiment 3

[0060] The invention provides a kind of sewage treatment agent with sustained release function, comprising the following components corresponding to the following parts by weight:

[0061] Phosphorus removal flocculant 40 parts;

[0062] 20 parts of sustained release agent;

[0063] 55 parts of solid carrier.

[0064] As a further improvement of the present invention, the phosphorus removal flocculant includes the following components corresponding to the following weight ratios: 0.3 parts of polyferric sulfate; 15 parts of polydimethyldiallylammonium chloride.

[0065] As a further improvement of the present invention, 3 parts by weight of hydroxyoctanoic acid are also included.

[0066] As a further improvement of the present invention, the slow-release agent is cellulose ether.

[0067] As a further improvement of the present invention, the cellulose ether includes a composition of hydroxypropyl methyl cellulose ether and hydroxyethyl cellulose ether.

[0068] As a furt...

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Abstract

The invention provides a sewage treatment agent with a slow release function. The sewage treatment agent comprises the following components in parts by weight: 30-45 parts of dephosphorization flocculant, 15-25 parts of slow release agent and 50-60 parts of solid carrier. The invention aims to provide the sewage treatment agent with the slow release function. The dephosphorization flocculant is effectively and continuously released after the sewage treatment agent reaches the middle and lower layers of sewage, a dephosphorization effect can be achieved while the continuous addition of chemicalagents can be avoided, so that an efficient and stable dephosphorization effect can be achieved.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a sewage treatment agent with slow release function and a preparation method thereof. Background technique [0002] Phosphorus is the main factor leading to eutrophication of water bodies, and phosphorus-containing sewage discharge is the main source of phosphorus in water. Therefore, the effective control of phosphorus concentration in wastewater has always been a hot issue. In the current sewage treatment process, the biological method is widely used due to its advantages of high phosphorus removal efficiency and low operating costs. However, with the increase in the requirements for the phosphorus limit in the discharged sewage, the application of chemical deep phosphorus removal is becoming more and more extensive. [0003] At present, the requirements for sewage treatment need to achieve a higher and more stable phosphorus removal effect, and chemical methods must...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52C02F1/54C02F1/56C02F101/10
CPCC02F1/5236C02F1/56C02F1/54C02F2101/105
Inventor 姜守国
Owner 襄阳先创环保科技有限公司
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