Sewage sludge can be used as soil amendment and fertilizer. Through potexperiment growing Xanthoceras sorbifolia Bunge in greenhouse

effects of applying sewage sludge in reclaimed soil on biomass of plant

soil moisture content

and wilting point are studied. Results show that sewage sludge not only increases the biomass of Xanthoceras sorbifolia Bunge

but also increases the water retention ability of plant subst rate. However

the more sewage sludge added does not mean the higher water retention ability of plant subst rate. The ability of plant subst rate may decreases when continuously adding sewage sludge if the ratio of added sewage sludge is over 60%. So utilization of sewage sludge as planting subst rate in the reclaimed land of a mining area is a feasible way to reuse and dispose of sewage sludge.