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Ammonia nitrogen removing agent

A technology for removing agents and ammonia nitrogen, which is applied in the direction of adsorption of water/sewage treatment, water pollutants, water/sewage treatment, etc., can solve the problems of trihalomethanes, etc., to improve adsorption capacity, speed up internal diffusion, and increase specific surface area Effect

Inactive Publication Date: 2018-11-13
FOSHAN LINGCHAO NEW MATERIAL CO LTD
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Problems solved by technology

[0004] The technical problem to be solved by the present invention: Aiming at the problem of trihalomethanes produced by adding excessive chlorine gas in the current domestic water production process, a kind of ammonia nitrogen remover is proposed

Method used

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preparation example Construction

[0016] (1) The preparation method of the mixture is: take trimethylolpropane and sodium carboxymethyl cellulose in a weight ratio of 1~3:5~7, mix them, crush and sieve to obtain the mixture.

[0017] The preparation method of the flocculation compound is: mix calcium aluminate powder and hydrochloric acid solution at a weight ratio of 10-15:50-80, then add ferrous sulfate with 20-30% of the weight of calcium aluminate powder, and stir for 1-2 hours. Filter, dry at 40~45°C for 3~4h, collect the dry matter, and obtain the flocculation compound.

[0018] The preparation method of the modified zeolite is: take the zeolite according to the weight ratio of 2~4:15~18 and add it to the hydrochloric acid solution with a concentration of 1mol / L, stir for 5~6h, wash with absolute ethanol for 3~4 times, and put it at 80~90℃ Drying at 105~110℃ for 2~2.5h; then mix magnesium chloride, sodium chloride and zeolite powder according to the weight ratio of 5~8:12~15:20~28, after ultrasonic treat...

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Abstract

The invention discloses an ammonia nitrogen removing agent and belongs to the field of environmental protection. Zeolite is modified and activated by hydrochloric acid, magnesium chloride and sodium chloride are dispersed on the zeolite by an ultrasonic treatment and roasting method, the specific surface area of the zeolite is increased, an alkaline active site is obtained, the microporous structure of the zeolite is remained, the original calcium ions with larger radiuses in the zeolite are replaced by the magnesium ions and the sodium ions, the effective pore diameter of the zeolite is enlarged, the internal dispersing speed is increased and the exchange capacity is increased, so that the adsorption ability on ammonia nitrogen in waste water is improved and the ammonia nitrogen removingagent is suitable for ammonia nitrogen containing waste water with high concentration and low concentration. The problem that trihalomethane is generated caused by the fact that excessive chlorine isadded in the existing domestic water preparation process is solved.

Description

technical field [0001] The invention belongs to the field of environmental protection, and in particular relates to an ammonia nitrogen remover. Background technique [0002] Ammonia nitrogen refers to the free ammonia (NH 3 ) and ammonium ions (NH 4 + ) in the form of nitrogen, and ammonia nitrogen has a great impact on human health and the ecological environment. High-concentration ammonia nitrogen wastewater has a wide range of sources and a large amount of discharge, such as chemical fertilizers, coking, petrochemicals, pharmaceuticals, food, landfills, etc., all produce a large amount of high-concentration ammonia nitrogen wastewater. The discharge of a large amount of ammonia nitrogen wastewater into the water body will not only cause eutrophication of the water body, cause the water body to be black and smelly, but also increase the difficulty and cost of water supply treatment, and even cause poisonous effects on people and organisms. Pollution control, energy sa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/28C02F1/52C02F101/16
CPCC02F1/281C02F1/5236C02F2101/16
Inventor 裘友玖顾一笑刘红妹
Owner FOSHAN LINGCHAO NEW MATERIAL CO LTD
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