The yarn manufacture industry, which we are working on zero liquid discharge, is mainly a chemical Industry effluent treatment plant discharging around 10,000m3/day. So achieving zero liquid discharge, this huge discharge can be eliminated and daily water consumption of industry can be reduced. The effluent coming to effluent treatment plant is having some significant effluent characteristics like mostly varying PH, high BOD, high, COD, heavy metal. Basic study of the current effluent plant including load, parameters of effluent & treatment. Identify the gap between present ETP at yarn manufacture industry and zero liquid discharge ETP. The ZLD process also makes effective use of wastewater treatment, recycling, and reuse. We use primary data collection method and collect the parameter of effluent and treated effluent as well as load calculations for better design.