Integrated oxidation ditch combining microorganism fruits part

Abstract

The invention relates to an integrated oxidation ditch combining a microorganism fruits part. The invention comprises a whole set of oxidation ditches and at least one microorganism fruits module, wherein the microorganism fruits module comprises at least one microorganism fruits part and one inhibition mechanism, the microorganism fruits part is located in the oxidation ditches, the microorganism fruits part comprises at least one pore which is favorable for microorganism fruits, the inhibition mechanism is connected with the oxidation ditches to restrain the microorganism fruits part from moving; and the whole set of the oxidation ditches comprises an anaerobic zone, an aeration zone, a precipitation zone, and the like, or also comprises a mud return mechanism. By using the combination of the inhibition mechanism and the microorganism fruits part, the location of the microorganism fruits part of the invention can be set according to innate factors or can be regulated according to innate and variable factors, an environment which is favorable for microorganisms to breed and inhabit can be created according to practical application conditions easily, conveniently and flexibly, microorganism food chains in the oxidation ditches are extended effectively, and the efficacy of biological purification is increased so that bioslurry output is reduced and environment load derived from subsequent biological sludge treatment process can be reduced further.

Description

technical field [0001] The invention relates to an integrated oxidation ditch combined with microbial breeding parts, in particular to a technical solution for applying microbial breeding parts to an integrated oxidation ditch, which uses microorganisms in a simple, convenient, mobile and economical way to improve The effect of sewage purification. Background technique [0002] The existing integrated oxidation ditch (Integral Combined Oxidation Ditch) can also be called Integrated Oxidation Ditch (Integrated Oxidation Ditch). In one, there is no need to set up an independent mud return system, the capital investment and operating costs are lower, and to a certain extent, it makes up for the shortcomings of the large area of ​​the oxidation ditch built by the traditional non-integrated method. This integrated oxidation ditch utilizes a Continuous Loop Reactor (CLR for short) to perform biological reactions, in which the mixed solution is continuously circulated (circulated)...

AI Technical Summary

Problems solved by technology

[0006] 2. Sludge floating problem

[0007] Due to the particularity of the structure of the integrated oxidation ditch, the system's oxygenation, mixing, flow rate, sedimentation and other factors are mutually restrained, and the control of various factors is difficult, resulting in adverse consequences, for example, improper control of aeration time leads to aeration time If it is too long, it will cause a high degree of nitrification in the pool, resulting in a high concentration of nitrate, which will inevitably prevent the occurrence of denitrification, thus generating nitrogen and making the sludge float.

In addition, the amount of sludge reuse in the system operation cannot be controlled, and it is difficult to adjust it in time according to the operation of the system, and it is also prone to shortcomings such as sludge floating and loss

[0008] 3. Uneven flow rate and sludge deposition

However, the depth of the oxidation ditch is more than 3m, resulting in a relatively large flow velocity in the upper part of the oxidation ditch (about 0.8-1.2m, or even greater), while the flow velocity at the bottom is very small (especially below 2 / 3 or 3 / 4 of the water depth. The liquid shows almost zero flow rate), resulting in a large amount of mud accumulation at the bottom of the ditch (sometimes the thickness of the mud accumulation reaches 1m), which greatly reduces the effective reaction volume of the oxidation ditch and reduces the treatment effect

Although the bottom of the oxidation ditch is equipped with aeration equipment (usually aeration brush and aeration turntable), the immersion depth of the turn brush (relative to the bottom of the ditch) is mostly less than 0.3m, and the immersion depth of the turntable (relative to the bottom of the ditch) is About 0.5m, compared with the water depth of the oxidation ditch (mostly more than 3m), the proportion is less than 1 / 6, which does not help to solve the problem

[0010] 4. The problem of bio-clay being crushed

[0011] In order to provide sufficient flow velocity at the bottom of the ditch to prevent sludge deposition, if the intensity of aeration or pushing action is increased, the biological sludge will be disintegrated or fragmented due to too much force, resulting in difficulties in sludge floating and sedimentation

[0012] 5. Poor processing capacity for water quality load with small BOD

[0013] The purification treatment mechanism of the oxidation ditch is still the activated sludge method. The activated sludge concentration has a certain range, and its organic load also has a certain range. If the organic load is too small, the sludge coagulation effect is not good, the sludge is easy to lose, and stable control is not easy , so for the water quality with small BOD, the treatment capacity is not good

[0014] 6. The effect of phosphorus removal and nitrogen removal is poor

[0015] Integrated oxidation ditch, because it is difficult to control the dissolved oxygen range in water, the ability of integrated oxidation ditch to remove phosphorus and nitrogen is poor, and its general removal effect of total nitrogen TN and total phosphorus TP is lower than 20%.

[0016] 7. Sampling and management are not easy

[0017] The operation status of the sewage treatment system is presented by a series of physical, chemical and biological indicators of daily laboratory monitoring, and the selection, analysis, and monitoring of sampling are also important. The selection is difficult to be representative, and at the same time, multi-point sampling will bring difficulties in data analysis to monitoring operations, so data analysis and presentation will be subject to unavoidable fog areas and blind spots to a certain extent

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