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Preparation method and rapid infiltration system for biochar immobilized microbial filler

A technology of microorganisms and biochar, which is applied in the direction of using microorganisms, granular microbial carrier treatment, immobilization on or in inorganic carriers, etc., can solve the problem that the total nitrogen index of domestic sewage cannot be reached, and the artificial rapid infiltration system takes up Large land area and other problems, to achieve the effect of ensuring the infiltration speed and ammonia nitrogen removal capacity, rich variety and quantity, and simple preparation method

Inactive Publication Date: 2018-10-19
海天水务集团股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The artificial rapid infiltration system covers a large area, and the total nitrogen index of the treated domestic sewage does not meet the first-level A standard in the "Pollutant Discharge Standards for Urban Sewage Treatment Plants" (GB18918-2002)

Method used

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  • Preparation method and rapid infiltration system for biochar immobilized microbial filler

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Comparison scheme
Effect test

Embodiment 1

[0034] A preparation method of biochar immobilized microbial filler mainly comprises the following steps:

[0035] Step E1: The biomass raw material is rice straw, after removing large particles of impurities, air-dried and pulverized into 3 cm by a pulverizer, and placed for use; the oxygen-limited pyrolysis method is used to prepare biochar in a muffle furnace, and an appropriate amount of biomass is weighed in a crucible, Compact, cover and place in a temperature-programmed muffle furnace, crack at a temperature of 300-700°C for 6 hours, take it out after cooling, grind and pass through a 10-mesh sieve for use;

[0036] Step E2: Take the filler that has been running stably for many years from the artificial rapid infiltration system (CRI system), and store it in a refrigerator at 4°C until use; take about 2g of the preserved filler, inoculate it in sterile water under aseptic operation, and incubate at 35°C, 140r / Under the condition of shaking for 3 hours, let it stand sti...

Embodiment 2

[0044] A preparation method of biochar immobilized microbial filler mainly comprises the following steps:

[0045] Step E1: The biomass raw material is rice straw, after removing large particles of impurities, air-dried and pulverized into 5 cm by a pulverizer, and placed for use; the oxygen-limited pyrolysis method is used to prepare biochar in a muffle furnace, and an appropriate amount of biomass is weighed in a crucible, Compact, cover and place in a temperature-programmed muffle furnace, crack at a temperature of 300-700°C for 6 hours, take it out after cooling, grind and pass through a 10-mesh sieve for use;

[0046] Step E2: Take the filler that has been running stably for many years from the artificial rapid infiltration system (CRI system), and store it in a refrigerator at 4°C until use; take about 2g of the preserved filler, inoculate it in sterile water under aseptic operation, and incubate at 35°C, 140r / Under the condition of shaking for 3 hours, let it stand sti...

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Abstract

The invention discloses a preparation method for a biochar immobilized microbial filler. The preparation method comprises the steps of biochar firing, microbial domestication and microbial immobilization. The preparation method specifically comprises the following steps: domesticating microorganisms for sewage treatment by adopting filler used in an artificial rapid infiltration system; adsorbingthe domesticated microorganisms by adopting biochar and preparing to obtain the biochar immobilized microbial filler; finally, mixing the biochar immobilized microbial filler with natural river sand according to the mass ratio of 1-6 to 1-8, and preparing to obtain the biochar immobilized microbial filler with a better sewage treatment effect. The invention also discloses a rapid infiltration system for the biochar immobilized microbial filler; the rapid infiltration system comprises a distributing reservoir, a lifting pump, a water distributing system and an infiltration column; the inner part of the infiltration column is filled with the biochar immobilized microbial filler. The preparation method disclosed by the invention overcomes the defect of low total nitrogen removal rate of a CRIsystem by using good properties of the biochar and efficient nitrogen removal effect of the microorganisms.

Description

technical field [0001] The invention belongs to the technical field of rapid diafiltration systems, and in particular relates to a preparation method of biochar immobilized microbial fillers and a rapid diafiltration system thereof. Background technique [0002] As the main incomplete combustion product of pyrolysis and carbonization synthesis, biochar is a stable carbon-rich substance and is called a super adsorbent. Microbial immobilization technology is a new type of technology developed rapidly in the late 1960s. It has the advantages of fast experiment speed, easy cultivation of dominant microbial populations, high microbial density, low loss, high stability of the treatment process, and environmental tolerance. Strong (such as pH, temperature, toxic substances, etc.), good solid-liquid separation effect, easy to control the treatment process and other advantages, so it has shown great advantages in many wastewater treatment. [0003] Constructed Rapid Infiltration (CR...

Claims

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Application Information

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IPC IPC(8): C12N11/14C12N1/20C12N1/36C02F3/00C02F3/30
CPCC12N1/20C12N1/36C12N11/14C02F3/00C02F3/301C02F3/302C02F2003/003C02F2003/001
Inventor 许文来杨开虎费功全潘志成简悦
Owner 海天水务集团股份公司
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