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Aerobic biological filler and arrangement method thereof

A technology of aerobic biology and layout method, which is applied in sustainable biological treatment, chemical instruments and methods, biological water/sewage treatment, etc. Low preparation cost, avoidance of biological filler accumulation, and good biological performance

Inactive Publication Date: 2017-08-18
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an aerobic biological filler and its arrangement method, in order to solve the problems of the existing biological fillers in engineering operation such as large accumulation, high operating energy consumption and poor degradability of the used fillers. A new type of biofiller suitable for high ammonia nitrogen industrial wastewater. It has been developed with good biological performance, high mass transfer efficiency, strong biological denitrification ability, and can complete short-range nitrification and denitrification at the same time. It is environmentally friendly and degradable with low production cost and convenient installation, replacement and management. new biological filler

Method used

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  • Aerobic biological filler and arrangement method thereof
  • Aerobic biological filler and arrangement method thereof
  • Aerobic biological filler and arrangement method thereof

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specific Embodiment approach 1

[0024] Specific implementation mode one: as figure 1 and figure 2 As shown, what is described in this embodiment is an aerobic biological filler. The filler is prepared from polyethylene-chitosan derivatives. The filler consists of a hollow tube 1 and a solid cylinder 2 concentric with it. The hollow tube 1 and the solid cylinder 2 are connected by three brackets 3 at 120° each other, the outer diameter of the hollow tube 1 is 30-50 mm, the height of the hollow tube 1 is 40-50 mm, and the hollow tube 1 is 40-50 mm in height. 1. The wall thickness is 1.0~1.5mm, and the diameter of the solid cylinder 2 is 5.0~10.0mm; the outer peripheral surface of the hollow tube 1 is provided with a plurality of spiral grooves 4 parallel to the axial direction, and each adjacent two The distance between each of the spiral grooves 4 is 8.0~10.0mm, the depth of each spiral groove 4 is 1.5mm, and the width of each spiral groove 4 is 1.0~2.0mm; the hollow circular tube 1. A plurality of protrud...

specific Embodiment approach 2

[0025] Specific embodiment two: a kind of aerobic biological filler described in specific embodiment one, the specific surface area of ​​described filler is 800~950m 2 / m 3 .

specific Embodiment approach 3

[0026] Specific implementation mode three: as Figure 5 As shown, a method for arranging the aerobic biological filler in the aeration tank described in Embodiment 1 or 2, the specific steps of the method are as follows:

[0027] Get many nylon ropes 6 with high acid and alkali corrosion resistance and toughness, string a plurality of said fillers to each nylon rope 6 one by one, tie a knot every 60mm on each nylon rope 6, so that each filler can Fix between the two nodes of the nylon rope 6, control the length of each nylon rope 6 at 4.0m; weld the square frame 7 with acid and alkali corrosion-resistant stainless steel, and evenly fix the stringed packing on the square frame 7 Aeration tubes are tiled at the bottom of the aeration tank, and the water body is aerated by an air compressor; the bottom of the cube frame 7 that is evenly fixed with a plurality of fillers is arranged at 50 cm above the aeration tubes, and the upper part makes the fillers between the water surface ...

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Abstract

Belonging to the field of industrial wastewater treatment, the invention relates to aerobic biological filler and an arrangement method thereof. The filler is prepared from a polyethylene-chitosan derivative. One filler composition comprises a hollow circular pipe and a concentric solid cylinder, the hollow circular pipe and the concentric solid cylinder are connected through three supports at an angle of 120 degrees to each other, and another filler composition comprises a hollow ball with round holes at two ends, and both ends of the round holes are symmetric about the ball center. The filler provided by the invention is made of the degradable polyethylene-chitosan derivative, and can be degraded into environment-friendly substances. The layout has relatively fixed location, can avoid biological filler stacking phenomenon, and can better give play to the effect of the biological filler. During aeration, microorganisms on the filler and pollutants and oxygen in water can undergo mass transfer, thus greatly improving the mass transfer efficiency. The biological filler is evenly dispersed in an aeration tank, and the oxygen mass transfer efficiency is high, so that the aeration quantity is greatly reduced, and the energy consumption and running cost are reduced.

Description

technical field [0001] The invention belongs to the field of industrial wastewater treatment, and in particular relates to an aerobic biological filler and an arrangement method thereof. Background technique [0002] Most of the industrial wastewater is organic wastewater with high ammonia nitrogen. The traditional activated sludge method has limited treatment capacity, and the physical and chemical method will greatly increase the treatment cost. In engineering treatment, fillers are often used as microbial carriers to improve the microorganisms in the reaction tank. quantity and variety. The biofilm attached to the filler forms anaerobic environment, anoxic environment and aerobic environment from the inside to the outside, which can realize the synchronous metabolism of anaerobic bacteria, facultative bacteria and aerobic bacteria, and help to realize synchronous nitrification and denitrification , to achieve the purpose of sewage denitrification. At the same time, the ...

Claims

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Application Information

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IPC IPC(8): C02F3/10
CPCC02F3/101C02F3/109Y02W10/10
Inventor 王广智马贺蒙陈睿
Owner HARBIN INST OF TECH
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