Wastewater treatment areas; sewagefarms, settling ponds, oxidation basins, etc.
废水处理地区，污水处理田、沉淀池、氧化池等。
2
After sludge adsorbent preparation with sludge in sewagefarms, the experiments and researches of flue gas desulphurization were carried out.
以污水厂污泥为原料制备了污泥吸附剂，采用该污泥吸附剂进行了烟气脱硫的实验研究。
3
With a great deal of sewagefarms have been built in the city area, the relating task of crack-control of over length buildings are yielding more and more importance.