Batch Study Experiments And Column Analysis For Finding Out A Suitable Biosorbent For The Removal Of Heavy Metals From Electroplating Industry Effluent

摘要

The purpose of this paper is to determine the optimal factors of the electro-discharge machining (EDM) process investigate feasibility of design of experiment techniques. The workpieces used were rectangular plates of AISI 4140 grade steel alloy. The study of optimized settings of key machining factors like pulse on time, gap voltage,flushing pressure,input current and duty cycle on the material removal,surface roughness is been carried out using central composite design. The output responses measured were material removal rate (MRR) and surface roughness.Mathematical models are proposed for the above responses using response surface methodology (RSM).The results reveals that MRR is more influenced by peak current, duty factor.Finally, the parameters were optimized for maximum MRR with the desired surface roughness