Sludge And Effluent Management

INTRODUCTION

After treatment of wastewater, the organic and inorganic solids of wastewater are converted in sludge. Since the volume of sludge may be extremely high, therefore some treatment is required before final disposal. These treatments are thickening, stabilization, disinfection, conditioning, dewatering, drying and thermal reduction.

When solids of wastewater are separated out, the remaining part of wastewater (effluent) can be reused in many ways. In most of the cases, it is reused for irrigation, industrial or some recreational purposes and occasionally it can be reused as potable water. Effluent can also be disposed off directly to river, lake, sea and on ground.