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Marine active sludge product, preparation method and water treatment application of marine active sludge product

A technology for activated sludge and water treatment, applied in water/sludge/sewage treatment, biological water/sewage treatment, water treatment parameter control, etc. Single ecological system and other problems, to achieve the effect of wide application, strong practicability, and high wastewater degradation ability

Inactive Publication Date: 2017-09-01
谭淞文
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] "A film-hanging method for suspended fillers in a high-salt wastewater MBBR treatment system" recorded in the prior art (application number CN201510580959.1), by adding halophilic microbial agents into the reactor and adjusting the environmental condition parameters, promotes The colony film of halophilic microorganisms adheres to the surface of the filler, forming an ecological environment for halophilic microorganisms, which has a good ability to degrade high-salt organic wastewater; Large, not widely applicable

Method used

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  • Marine active sludge product, preparation method and water treatment application of marine active sludge product
  • Marine active sludge product, preparation method and water treatment application of marine active sludge product
  • Marine active sludge product, preparation method and water treatment application of marine active sludge product

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Embodiment 1

[0031] This embodiment provides a marine activated sludge product, characterized in that: the marine activated sludge product is rich in resistant and halophilic microorganisms derived from the ocean or other salt environments, and the marine activated sludge product is in the form of granular floc The form of activated sludge or the form of isolated composite bacterial agent, the dissolved oxygen (DO) content of the marine activated sludge product is 0.1-4.0mg / L (less than 0.5mg / L is an anaerobic environment), the ambient temperature 0-50 degrees (long-term storage is preferably 4 degrees), salt concentration is 2-34%, pH value is 5-9, and when it exists in the form of activated sludge, its sludge volume index (SVI) is 50 ~200mL / g, mixed liquor volatile suspended solids concentration (MLVSS) is 1.2~7.5g / L.

[0032] Aiming at the marine activated sludge product of the present invention, the present invention designs a preparation method of the marine activated sludge product. ...

Embodiment 2

[0042] The present embodiment provides a kind of preparation method of marine activated sludge product, it is characterized in that, comprises the steps:

[0043] S1: Take the unsterilized sea mud from Weihai Jinhai Bay Bathing Beach as the microbial growth carrier, and use the unsterilized seawater culture medium from Weihai Jinhai Bay Bathing Beach. The initial sludge volume index (SVI) of the sea mud is 12mL / g, The salinity of the sampled sea body environment is 2.8%, and the culture solution configured includes glucose 0.21g / L, starch 0.17g / L, ammonium chloride 0.06g / L, potassium dihydrogen phosphate 0.003g / L ( The element ratio of C, N, and P is about 100:5:1), and its corresponding chemical oxygen demand (COD) concentration is 400mg / L;

[0044] S2: Cultivate in a bioreactor for 90 days to obtain marine activated sludge; do not stir during the process of cultivating the marine activated sludge, and the number of renewals of the nutrient solution is 7 times / week in the fir...

Embodiment 3

[0048] The present embodiment provides a kind of preparation method of marine activated sludge product, it is characterized in that, comprises the steps:

[0049] S1: Take unsterilized sea mud from the Bohai Sea area as the microbial growth carrier, and use unsterilized seawater from the Yellow Sea area to prepare the culture medium. The initial sludge volume index (SVI) of the sea mud is 35mL / g. The sampled The salinity of the sea environment is 2%, and the prepared culture solution contains 0.05g / L sucrose, 0.05g / L peptone, 0.015g / L ammonium nitrate, and 0.001g / L dipotassium hydrogen phosphate (corresponding to a COD concentration of about is 100mg / L);

[0050] S2: Cultivate in a bioreactor for 30 days to obtain marine activated sludge; do not stir during the process of cultivating the marine activated sludge, and the number of renewals of the nutrient solution is 7 times / week in the first 10 days, and 5 times in the middle 10 days times / week, 3 times / week in the next 10 days...

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Abstract

The invention relates to a marine active sludge product, and a preparation method and a water treatment application of the marine active sludge product. The marine active sludge product is rich in salt-tolerant microorganisms and halophilic microorganisms from the ocean or other salt environments, and exists in a form of particle flocculent active sludge or a separation composite inoculant; the product has a DO (dissolved oxygen) content of 0.1-4.0mg / L, an ambient temperature of 0-50 DEG C, a salt concentration of 2-34% and a pH (potential of hydrogen) value of 5-9; and when the product exists in the form of the active sludge, an SVI (sludge volume index) of the product is 50-200mL / g, and an MLVSS (mixed liquor volatile suspended solid) is 1.2-7.5g / L. According to the preparation method, a halophilic microorganism culture technology and an active sludge culture technology are fused for use innovatively; a novel microorganism purification system for high-salt organic wastewater treatment is prepared; an operating system with high wastewater degradation capability, and economical operating cost and temperature is achieved; and an application range is wide. The invention further provides a relevant water treatment method. The water treatment capability and the application range of the marine active sludge product is improved and expanded, and the practicability is better.

Description

technical field [0001] The invention relates to the field of microbial water treatment, in particular to a marine activated sludge product, its preparation method and water treatment application. Background technique [0002] High-salt organic wastewater is one of the most difficult water bodies to treat in industry at present. Because the wastewater contains a large amount of inorganic salt ions, it is difficult for high-salt organic wastewater to be degraded by microorganisms, and the cost of using physical and chemical treatment technologies is high. Therefore, it is necessary to seek high-efficiency It is an environmental protection technical problem to purify high-salt organic wastewater with advanced biological treatment technology. [0003] "A method for enhanced biological anaerobic treatment of high-salt and high-concentration organic wastewater" (application number CN201610198750.3) is recorded in the prior art. By designing reactors and adopting microbial domestic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N1/00C02F3/12C02F3/28C02F101/30
CPCC02F3/12C02F3/28C02F2101/30C02F2209/08C12N1/00Y02W10/10
Inventor 谭淞文谭旭谭松林谭越
Owner 谭淞文
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