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Efficient nitrogen and phosphorus removal granular preparation and production process thereof

A granular preparation, denitrification and phosphorus removal technology, applied in water treatment parameter control, water/sludge/sewage treatment, water pollutants, etc., can solve the problems of low porosity, high energy consumption, etc., to improve utilization efficiency, energy The effect of low consumption and simple process

Inactive Publication Date: 2017-08-18
YIKANG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Such as the use of toxic materials, high energy consumption, low porosity, etc.

Method used

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  • Efficient nitrogen and phosphorus removal granular preparation and production process thereof

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Embodiment 1

[0031] (1) mixed

[0032] Based on the total weight of the water purifying agent, mix potassium ferrate, bentonite, disodium edetate, and cement according to the weight ratio of 100g, 100g, 4g, and 50g, add to the mixer, and control the temperature at 25-30°C , and stirred for 20-30min under the protection of an inert gas.

[0033] If the bentonite, potassium ferrate, and cement used are solid, they need to be crushed into powder and then mixed.

[0034] (2) Hole forming

[0035] Sodium lauryl sulfate whipping agent is configured into the aqueous solution that concentration is 3g / L earlier, then the sodium lauryl sulfate aqueous solution is added according to 1% weight ratio and joins in the powder mixture mixed in the above-mentioned step (1), Add it into a mixer, control the temperature at 25-30°C, stir for 20-30 minutes under the protection of an inert gas, then use a granule press to produce a granule product, and finally dry it to form a granule preparation with a certa...

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Abstract

The invention relates to an efficient nitrogen and phosphorus removal granular preparation. The granular preparation is prepared from raw materials in parts by weight as follows: 20-100 parts of potassium ferrate, 20-100 parts of bentonite, 1-5 parts of disodium EDTA, 10-50 parts of cement and 1-5 parts of a sodium lauryl sulfate aqueous solution. The concentration of the sodium lauryl sulfate aqueous solution is 2-3 g / L. The production technology of the efficient nitrogen and phosphorus removal granular preparation comprises the steps as follows: (1) potassium ferrate, bentonite, disodium EDTA and cement are mixed and stirred uniformly in proportion, a mixture is obtained; (2) the sodium lauryl sulfate aqueous solution is added to the mixture in step (1) and mixed and stirred uniformly, granulation and drying are performed, and the granular preparation is obtained. The efficient nitrogen and phosphorus removal granular preparation and the production process thereof have the benefits that energy consumption is low in the preparation process of nitrogen and phosphorus removal granular preparation, preparation is simple, no secondary pollution is caused to the environment, and the heavy metal adsorption effect is good.

Description

technical field [0001] The invention relates to a granular preparation for high-efficiency nitrogen and phosphorus removal and a production process thereof, belonging to the field of granular preparations. Background technique [0002] As my country's water treatment infrastructure is not yet perfect, a large amount of wastewater without advanced treatment and carrying a large amount of nitrogen, phosphorus and other substances enters the environmental water body. Excessive nitrogen and phosphorus is one of the important factors causing eutrophication and deterioration of water bodies. Excessive nitrogen and phosphorus elements required by organisms are discharged into the water body, causing algae and plankton to multiply rapidly in a short period of time, and the dissolved oxygen in the water body drops sharply, resulting in the death and decomposition of fish and other organisms, further consuming the dissolved oxygen in the water body. The deteriorating water quality no...

Claims

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Application Information

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IPC IPC(8): C02F1/00C02F1/28C02F1/72C02F1/52C02F1/62
CPCC02F1/00C02F1/28C02F1/5245C02F1/62C02F1/72C02F2101/105C02F2101/16C02F2101/30C02F2209/08C02F2209/14C02F2209/16
Inventor 郝进伟曲毅丁宇康琦杨宏旺
Owner YIKANG TECH CO LTD
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