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Garden type ecological floating island for in-situ upgrading and reconstruction

An ecological floating island, garden-like technology, applied in floating buildings, special treatment targets, biological treatment devices, etc., can solve the problems of uneven distribution of dissolved oxygen, reduced microbial activity, and uneven oxygen dispersion in the aerobic section. Optimizing the effect of low utilization, increasing concentration, and increasing microbial activity

Active Publication Date: 2021-12-17
ZHENGZHOU UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] From the point of view of in-situ standard improvement, the aerobic section of the existing oxidation ditch process generally has a large amount of aeration, but due to the long-term operation of the oxidation ditch has the characteristics of short flow, blockage, and uneven aeration, resulting in uneven oxygen dispersion. Uniform, low utilization
Therefore, the TN and organic matter in the effluent of the oxidation ditch are not up to the standard. A considerable part of the reason is that the existing aerobic section has an uneven distribution of dissolved oxygen and the microorganisms cannot fully play their roles.
There are also researchers who directly put the filler into the oxidation ditch to increase the sludge concentration, but this method has the problems of material running and clogging
In addition, the microbial activity is reduced due to the low temperature in winter, which will also lead to poor operation effect.

Method used

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  • Garden type ecological floating island for in-situ upgrading and reconstruction

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The simulated oxidation ditch sewage is treated by using the ecological floating island and filler of the present invention, and the porous filler is made of nylon, coconut shell activated carbon and starch according to the mass ratio of 50:8:3, and the filling ratio is 30%. Put the ecological floating island into a simulated small-scale oxidation ditch device. The diameter of the gas collection and release device is 5cm, and the diameter of the opening is 60cm. The inoculation sludge was taken from the oxidation ditch, and the influent water was taken from the oxidation ditch of a sewage treatment plant in Shanxi. The residence time was 1 hour, the effluent water quality was stable, the removal rate of ammonia nitrogen increased by 17%, the removal rate of TN increased by 24.9%, and the removal rate of COD It has increased by 15.4% and reached the standard of the fourth category of surface water. The monitoring data are shown in Table 1.

[0025] Table 1 is the monitor...

Embodiment 2

[0028] Adopt the ecological floating island and filler of the present invention to process simulated oxidation ditch sewage, make porous filler according to the mass ratio of nylon, coconut shell activated carbon, and starch according to the ratio of 40:5:5, and the filling ratio is 40%. Put the ecological floating island into a simulated small-scale oxidation ditch device. The diameter of the gas collection and release device is 10cm, and the diameter of the opening is 100cm. The inoculum sludge was taken from the oxidation ditch, and the influent water was taken from the oxidation ditch of a sewage treatment plant in Jiyuan. The residence time was 50 minutes, the effluent water quality was stable, the removal rate of ammonia nitrogen increased by 17.9%, the removal rate of TN increased by 29.1%, and the removal rate of COD It has increased by 19.4% and reached the standard of the fourth category of surface water. The monitoring data are shown in Table 2.

[0029] Table 2 is ...

Embodiment 3

[0032] The simulated oxidation ditch sewage is treated by using the ecological floating island and filler of the present invention, and the porous filler is made of nylon, coconut shell activated carbon and starch according to the mass ratio of 35:6:5, and the filling ratio is 50%. Put the ecological floating island into the simulated small-scale oxidation ditch device. The diameter of the gas collection and release device is 8cm, and the diameter of the opening is 70cm. The inoculation sludge was taken from the oxidation ditch, and the influent water was taken from the oxidation ditch of a sewage treatment plant in Luohe. The residence time was 50 minutes, and the effluent water quality was stable. The removal rate of ammonia nitrogen increased by 16%, the removal rate of TN increased by 30.4%, and the removal rate of COD It has increased by 22.1% and reached the standard of the fourth category of surface water. The monitoring data are shown in Table 3.

[0033] Table 3 is th...

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Abstract

The invention particularly relates to a garden type ecological floating island for in-situ upgrading and reconstruction. The garden type ecological floating island comprises a gas collecting and releasing device, a floating island frame, a filler area, filler, a plant planting area, emergent aquatic plants, a self-control rotation control system and a motor. The ecological floating island is provided with the gas collecting and releasing device, so that the loss of dissolved oxygen is reduced; the ecological floating island is provided with the filler area, so that the sludge concentration of the system is increased, the utilization rate of dissolved oxygen is increased, and the removal rate of organic matters and nitrogen is increased; the automatic rotation control system of the ecological floating island can relieve the blockage problem; and the upper part of the floating island is the emergent aquatic plant planting area for absorbing organic matters and nitrogen in sewage, and meanwhile, the effects of beautifying and deodorizing the oxidation ditch are achieved.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and relates to an in-situ upgrading and transformation method for sewage in the aerobic section of an oxidation ditch, in particular to a garden-style ecological floating island for in-situ upgrading and transformation. The main purpose is to design a new structure This type of assembled multifunctional ecological floating island can in-situ treat nitrogen, organic matter and other pollutants in the aerobic section of the oxidation ditch, realize the purpose of upgrading the oxidation ditch, and form a garden-like landscape effect at the same time. Background technique [0002] Currently commonly used methods such as advanced oxidation and biological oxidation ponds require new reaction devices, which occupy a large area of ​​land. Due to the constraints of land occupation pressure and operating costs, the potential for improving denitrification performance by relying on new reaction devi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30C02F3/32C02F3/10B63B35/44C02F101/16C02F101/30
CPCC02F3/302C02F3/32C02F3/104C02F3/105C02F3/108C02F3/107A01G31/02B63B35/44C02F2101/16C02F2101/30C02F2303/02C02F2203/006B63B2035/4493Y02W10/10
Inventor 朱红兵李海松王涛冯奇朱浩伟王倩文
Owner ZHENGZHOU UNIV
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