With design capacity of 170×10~4(m~3/d), the new structure of A/O biological nitrogen removal technology will be applied for the upgrading and rebuilding engineering in Shanghai Zhuyuan No.

Planning and Fulfilment of the Campus LAN Upgrading;

Study on upgrading of second cooling control system in slab continuous cast

Thinking on Effective Management During the Upgrading Green Space

Approach of some topics about upgraded inductively coupled plasma spectrometers;

According to many year s experience in operation and maintenance,the system at GPSPS is upgraded.

The paper analyzes the reason of the fault,and proposes the upgrade scheme,and expounds its function,thus improves the economic efficiency of the station operation.

Practice and Consideration on Alteration of Large-Scale Analytical Instrument;

In the upgrading and reconstruction project,the bottom aeration oxidation ditch is reconstructed into a compound aerobic tank with pre-anoxic tank,and the anaerobic stage and the anoxic stage are hydraulically optimized.

Through the prediction by the activated sludge models accorded with practical conditions of the two plants,a process optimization plan for ensuring the effluent quality to meet the discharge standard is put forward,which provides a scientific and economic method for upgrading and reconstruction of oxidation ditches in the northern China.

The TUD model was applied to evaluate and optimize a modified A2/O process design which is an upgrading and reconstruction scheme of a large municipal WWTP in Beijing.

Based on the example,this paper expatiates the design method of the improvement project fordyeing and finishing sewage treatment system.

The cost of actual improvement project is 6?700?000 yuan, all investment will be regained in 9 years.