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Multifunctional suspended carrier for sewage treatment and preparation method of multifunctional suspended carrier

A suspension carrier and sewage treatment technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve problems such as difficult replacement, high cost, and reduced activity, and improve the treatment effect , Facilitate adhesion and low cost

Active Publication Date: 2012-09-12
SHANDONG HUAYOU CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The function of this type of carrier is relatively simple, and generally does not have chemical adsorption
Because it is a synthetic material product, the general cost is relatively high, and after a period of time in the reactor, the activity decreases and it is not easy to replace

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1, (1) will produce the waste slag of polyaluminum chloride, its moisture content 32.3%, 100Kg, unslaked lime 3Kg, pack into cement mixer and mix for 30 minutes. (2) The mixed material is stacked and matured for 16 hours. (3) Put the material into a rotary dryer and dry at 110-130°C. (4) The material is added into a ball mill and mixed with 45Kg of fly ash for grinding. (5) Add the ground powder to the mixer, add 10% water glass solution 40Kg and 10Kg of talcum powder mixture as a binding agent, stir evenly, and dry for 12 to 24 hours after granulation; (6) Put the granulated material into the stove, heat it to 200°C, and keep it warm for 1 hour, then raise the temperature to 600°C within 6-7 hours, keep it warm for 2 hours, then raise the temperature to 900-1000°C, and bake it for 2 hours. Cooling down to room temperature; (7) crushing and sieving by a pulverizer to a particle size below 0.02 mm to obtain a multifunctional ceramic powder carrier for MBBR s...

Embodiment 2

[0029] In Example 2, 15Kg of pottery clay and 35Kg of water were used to refine the slurry instead of the binder in Example 1. The other operations were the same, and the obtained multifunctional ceramic powder carrier was used for MBBR sewage treatment. Test operation is the same as embodiment 1. After 16 hours of biochemical treatment, the effluent index COD is less than 50mg / L, ammonia nitrogen is less than 8mg / L, and phosphorus is less than 0.5mg / L, meeting the national GB8978-1996 first-level discharge standard.

Embodiment 3

[0030] In Example 3, 15Kg of kaolin and 35Kg of water were used to refine the slurry instead of the binder in Example 1. The other operations were the same, and the obtained multifunctional ceramic powder carrier was used for MBBR sewage treatment. Test operation is the same as embodiment 1. After 16 hours of biochemical treatment, the effluent index COD is less than 50mg / L, ammonia nitrogen is less than 8mg / L, and phosphorus is less than 0.5mg / L, meeting the national GB8978-1996 first-level discharge standard.

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PUM

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Abstract

The invention discloses a multifunctional suspended carrier for sewage treatment and a preparation method of the multifunctional suspended carrier, belongs to a material used for water, wastewater, sewage or sludge treatment equipment and particularly relates to a microorganism suspended carrier for water, wastewater or sewage biological treatment. The multifunctional suspended carrier for sewagetreatment is characterized in that aluminum polychlorid production waste residues, quicklime, coal ash and binders are raw materials, and targets are obtained through steps of mixing, curing, drying,granulation, baking and pulverization. The raw materials of the product disclosed by the invention are low-cost industrial wastes, and the resource utilization of the wastes is favorably realized. The main ingredient of the product is aluminosilicate, the aluminosilicate is neutral in water and is favorable for microorganism attaching propagation, phosphoris generated after biological metabolism are fixed on the carrier surface in a phosphate mode, the microorganisms are settled at the bottom of a processor after the phosphate adsorption, and the microorganisms can be always kept in a high-activity state through regularly extracting partial sludge and updating the carrier.

Description

technical field [0001] The invention belongs to a material used in water, waste water, sewage or sludge treatment equipment, in particular to a suspension carrier of microorganisms used in biological treatment of water, waste water or sewage. Background technique [0002] One of the commonly used treatment methods for bioengineering to treat domestic sewage is to immobilize microorganisms into biological processors through biological carriers, and use microorganisms to metabolize organic matter and nutrient-rich components in water. According to its process design, there are SBR method, AB method, fluidized bed method, contact oxidation method, and moving bed biofilm method. Among them, the moving bed biofilm process (referred to as MBBR) is a relatively advanced method in the treatment of community domestic sewage. [0003] The principle of MBBR process is to increase the biomass and biological species in the reactor by adding a certain amount of suspension carrier to the ...

Claims

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Application Information

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IPC IPC(8): C02F3/00
Inventor 段丽菊迟斌高乾善纪文华
Owner SHANDONG HUAYOU CHEM
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