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Composite water treatment agent special for coal washing wastewater and preparation method thereof

A technology of coal washing wastewater and water treatment agent, which is applied in adsorption water/sewage treatment, flocculation/sedimentation water/sewage treatment, etc., can solve the problems of high price, increase the economic burden of enterprises, and large usage, and achieve water chromaticity and COD. The effect of reducing and reducing the water consumption of enterprises and improving the utilization rate of water resources

Inactive Publication Date: 2011-09-28
夏建锋
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Problems solved by technology

Although inorganic electrolyte coagulants (such as polyaluminum chloride) and organic polymer flocculants (such as polyacrylamide) can meet the requirements of actual industrial production, they not only increase the cost of enterprises because of their high price or large amount of use. economic burden, and more importantly, the large-scale use of these flocculants will cause certain environmental pollution and endanger the living environment of human beings.
Relevant studies have shown that senile dementia is related to the intake of polyaluminum chloride, while polyacrylamide is corrosive, its monomer has strong neurotoxicity, and it is also a strong carcinogen

Method used

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  • Composite water treatment agent special for coal washing wastewater and preparation method thereof

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Effect test

Embodiment 1

[0012] Embodiment 1, a kind of composite water treatment agent for coal washing wastewater, choose chitosan as flocculant, its added weight is 40 kg, choose activated carbon as adsorbent, its added weight is 20 kg, choose diatomaceous earth as As a filler, the added weight is 40 kg, and Tween-80 is selected as the suspending agent, and the added weight is 0.5 kg. Put each component into a container by weight, add 500 kg of water, and emulsify with high-shear emulsifier for 30 minutes to obtain a paste-like viscous object, which becomes the composite water treatment agent for coal washing wastewater.

Embodiment 2

[0013] Embodiment 2, a kind of composite water treatment agent for coal washing wastewater, choose gelatin as flocculant, its added weight is 20 kg, choose diatomite as adsorbent, its added weight is 30 kg, choose activated clay as filler Agent, its added weight is 40 kg, choose alkanolamide as suspending agent, its added weight is 0.5 kg. Put each component into the container by weight, add 600 kg of water, and emulsify with the high-shear emulsifier for 30 minutes to obtain a paste-like viscous object, which becomes the composite water treatment agent for coal washing wastewater.

Embodiment 3

[0014] Embodiment 3, a kind of composite water treatment agent for coal washing wastewater, choose gum arabic as flocculant, its added weight is 20 kg, choose neutral alumina as adsorbent, its added weight is 20 kg, choose activated clay As a filler, its added weight is 60 kg, and Tween-80 is selected as a suspending agent, its added weight is 0.5 kg. Put each component into a container by weight, add 700 kg of water, and emulsify with high-shear emulsifier for 30 minutes to obtain a paste-like viscous object, which becomes the composite water treatment agent for coal washing wastewater.

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Abstract

The invention relates to a composite water treatment agent special for coal washing wastewater and a preparation method thereof. The composite water treatment agent is composed of the following components in parts by weight: 20-40 parts of chitosan, gelatine or Arabic gum used as a flocculant, 20-30 parts of activated carbon, diatomite or neutral aluminum oxide used as an adsorbent, 40-60 parts of diatomite or activated clay used as a filler, and 0.5-1 part of Tween-80 or alkanolamide used as a suspending aid. The composite water treatment agent provided by the invention can be used for greatly lowering the color degree and COD (chemical oxygen demand) of treated water, ensuring the treated water to meet the reuse requirement, enormously reducing the water consumption of enterprises and improving the utilization rate of water resources.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a composite water treatment agent for coal washing wastewater and a preparation method thereof. Background technique [0002] With the rapid development of industry, the world's annual industrial water consumption has exceeded 800 billion tons, and industrial water consumption accounts for about 80% of the total water consumption. In my country's coal industry, only national key coal mines produce 2800 X 10 tons of coal washing wastewater every year, and 20 X 10 tons of coal slime loss, which not only pollutes the environment, but also wastes resources. The pollution of coal washing wastewater is mainly manifested in the serious excess of suspended solids, silting of rivers, hindering the growth of aquatic organisms, and the dyeing of coal has also caused landscape pollution. Therefore, it is very necessary to effectively treat coal washing wastewater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/28C02F1/54
Inventor 夏建锋张红朝张勇李辉曹晓亮
Owner 夏建锋
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