Different kinds of mineral nutrients( NO3-N, NH4-N and PO4-P) were applied in the simulated oil-polluted seawater for enhancing oil biodegradation in the N/P ra
A series of simulation experiments of nitrogen transportation, absorption and transformation were conducted, and the different cropping patts of winter wheat an
A new technique was introduced for sand stabilization and re-vegetation by use of lignin sand stabilizing material( LSSM). LSSM is a reconstructed organic compo
This study was conducted to investigate the dissipation pattern and runoff of herbicides to the river basin from the paddy fields.Pesticide paddy field model(PA
In some industrial plants, wastewater was intermittently or seasonally generated. There may be periods during which wastewater treatment facilities have to be s