Carrousel oxidation ditch process optimized control method

Abstract

The invention discloses a Carrousel oxidation ditch process optimized control method which comprises the steps of: firstly, determining m projects to be optimized; secondly, respectively dividing each project into n grades; by adopting an orthogonal table to construct the p groups of oxidization ditch operation modes, namely Lp(nm); thirdly, constructing an oxidization ditch numerical simulation model based on a computational fluid mechanics method, testifying the oxidization ditch numerical simulation model; fourthly, respectively predicting effluent qualities under the p groups of constructed oxidization ditch operation modes by adopting the constructed oxidization ditch numerical simulation model; fifthly, preferably selecting an oxidization ditch operation mode based on an orthogonal test thought according to the effluent quality under p groups of operation modes calculated by the model; and finally, regulating an oxidization ditch to operate under a preferable mode. The oxidation ditch process optimized control method is simple and easy to operate, reduces manpower and time cost, is capable of effectively reducing energy consumption and cost of the operation of the oxidization ditch on the premise of realizing up-to-standard emission of the effluent quality of a system, and has a wide application prospect.

Description

technical field [0001] The invention belongs to the technical field of waste water biological treatment, and relates to a method for optimizing and regulating a Kanuser oxidation ditch process. Background technique [0002] With the increase of population, the development of economy and the acceleration of industrialization, the discharge of sewage in our country is increasing day by day. As of 2010, the total discharge of domestic sewage in my country reached 37.96 billion m 3 . In response to the increasing trend of sewage discharge year by year, my country has stepped up the construction of urban sewage treatment plants. As of the end of September 2010, 2,630 urban sewage treatment plants have been built in cities, counties and some key towns nationwide. Capacity up to 122 million m 3 / d. However, sewage treatment is an energy-intensive industry. According to statistics, the average energy consumption of urban sewage treatment plants in my country reaches 0.29kw·h / m 3 ...

AI Technical Summary

Problems solved by technology

[0004] However, the interior of the oxidation ditch system is a relatively complex system. Although the optimization of the oxidation ditch can be solved through sufficient tests, the test method has great limitations: First, the cycle of biological tests is relatively long. It takes half a year or even many years to get a solution; second, each test needs to compare multiple programs, but due to time constraints, the test programs that can be implemented are very limited, and the best solution cannot be obtained; third, the test Not only the cycle is long, but also costly, especially the production test is expensive

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