Preparation method of biological activated carbon filter

A biological activated carbon, activated carbon filter technology, applied in chemical instruments and methods, biological water/sewage treatment, special treatment targets, etc., can solve environmental and human health hazards, filter operation and maintenance obstacles, etc. The effect of cost, good effluent quality, extensive development and application value

Inactive Publication Date: 2018-06-29
上海华严检测技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] If the ozone oxidation process is used before the traditional downflow activated carbon filter, a certain amount of ozone will remain in the water entering the activated carbon filter, and these ozone will be released into the air above the filter, thereby causing harm to the environment and human health. It also brings obstacles to the operation and maintenance of the filter for the operator

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  • Preparation method of biological activated carbon filter
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preparation example Construction

[0021] The invention provides a preparation method of a biological activated carbon filter, including the test process flow as follows: pre-ozonation+coagulation, precipitation, filtration+ozone-biological activated carbon, wherein,

[0022] The cross-sectional size of the activated carbon filter is 500×500mm, the height is 4.92m, and the interior is divided into two compartments. It adopts a small resistance water distribution system and is filled with ZJ-15 columnar activated carbon. The iodine value of the carbon and the methylene blue adsorption value are respectively 961. and 187mg / g, the biological activated carbon filter adopts the downward flow type, and the filter adopts two-stage air-water backwashing, that is, first scrubbing with air, and then backwashing with non-chlorinated sand filter water, and the backwashing cycle is 7 days .

[0023] The ozone contact pool is divided into five pools with an effective water depth of 6. Among them, air is used as the gas sourc...

Embodiment 1

[0034] Embodiment 1: The preparation method of this bioactivated carbon filter, conventional treatment process parameters are basically constant, that is, the amount of water to be treated is 3~3.5m3 / h, the mixing time is 6~6.5s, the reaction time is 23.2~19.9min, and the rising flow rate in the clear water area of ​​the sedimentation tank 1.39~1.62mm / s, ascending flow rate in the inclined pipe is 1.60~1.87mm / s, filter rate is 6.49~7.57m / h, coagulant and pH regulator are respectively liquid alkali aluminum and sodium hydroxide, and the concentration They are about 2.5mg / L and 6mg / L respectively, which is the biological activated carbon filter. Indicators, ammonifying bacteria: This method uses the MPN method to mix the sample to be tested with sterile water. After shaking and ultrasonic treatment, the water sample is diluted to the required dilution by the 10-fold dilution method, and the samples with different dilutions are respectively Inoculate into sterile peptone ammoniat...

Embodiment 2

[0035] Embodiment 2: The preparation method of this bioactivated carbon filter, the routine treatment process parameter is constant basically, and promptly handles water volume 4~5.5m3 / h, mixing time 6~7.5s, reaction time 20~22min, sedimentation tank clear water area ascending flow velocity 1.03 ~1.09mm / s, ascending flow rate in the inclined pipe is 1.80~2.07mm / s, filter rate 6.49~8.50m / h, coagulant and pH regulator are respectively liquid alkali aluminum and sodium hydroxide, and the dosing concentration is respectively 2.5mg / L and 6mg / L, that is, a biological activated carbon filter. The detection method of biological activated carbon filter includes: ammonifying bacteria, nitrosifying bacteria, heterotrophic bacteria, several biological indicators of dehydrogenase activity, ammonification Bacteria: This method adopts the MPN method. Mix the sample to be tested with sterile water. After shaking and ultrasonic treatment, the water sample is diluted to the required dilution by ...

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Abstract

The invention discloses a preparation method of a biological activated carbon filter. The method comprises a test process. The test process comprises pre-ozonation and coagulation, settling, filteringand ozone-biological activated carbon, wherein conventional processing parameters are basically constant, that is, processing water volume is 3-3.5m<3>/h, mixing time is 6-6.5s, reaction time is 23.2-19.9min, an ascending flow rate of a settling tank clear water area is 1.39-1.62mm/s, an ascending flow rate in an oblique tube is 1.60-1.87mm/s, a filter rate of the filter is 6.49-7.57m/h, a coagulant and a pH regulating agent are respectively liquid alkaline aluminum and sodium hydroxide, feeding concentrations are respectively around 2.5mg/L and 6mg/L, and then, the biological activated carbon filter is obtained. A detection method of the filter involves ammonifying bacteria, nitrite bacteria, nitrifying bacteria, heterotrophic bacteria, and dehydrogenase activity. The preparation methodhas the advantages of eliminating organic matters and polluted matters in feed water of a carbon filter of a water supply factory and purifying the water. Compared with other sewage deep processing technologies, the biological activated carbon filter prepared by the method has a simple structure, occupies a small space, and runs conveniently.

Description

technical field [0001] The invention relates to a sewage detection and treatment technology, in particular to a preparation method of a biological activated carbon filter. Background technique [0002] With the increasingly serious pollution of water sources, in order to overcome the shortcomings of conventional treatment processes and meet the ever-increasing drinking water quality standards, deep purification of the effluent from conventional treatment processes will become one of the choices of waterworks. Bioactivated carbon technology can effectively remove organic matter (especially biodegradable parts) and smell in water, thereby improving the chemical and microbial safety of drinking water. At present, it has been valued by the water industry as an important way of deep purification of tap water. my country Most urban drinking water sources are polluted by organic pollutants (such as pesticides, chloroform, etc.), many of which have "three causes" (carcinogenic, terat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34
CPCC02F1/283C02F1/78C02F3/34C02F2303/04
Inventor 任凌颖
Owner 上海华严检测技术有限公司
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