With respect to natural environment, pollution problem is obvious, environmental quality of conjunction area between urban and rural is poor and some problems exist in river pollution abatement;
Data mining for water analysis of 11 rivers is made by factor analysis, and the sequent of pollution degrees of each river, principal factors, the combinations of pollution factor and the analysis of pollution source have been investigated.
Through the simulation and calculation of WEC, it can be arrived at the following conclusions: (1) QUAL2E model has great significance to control the water pollution and simulate the water quality.
This is a part of a subject " study on the sludge disposal and the reclamation in the urban dredged sewage river sediment (serial number of project: 043111811)".
The present paper describes the efficiency of this stage of treatment in the following situation: The river pollution is caused by one jet of final effluent (from a sewage disposal works) discharging during a finite time interval.
The index is shown to be more effective than the Pantle-Buck index modified by Sladecek and the Woodiwiss index and applicable for rapid assessment of watercourse pollution.