Treatment Of Waste Water From Food Industry Using Snail Shell

Abstract

Waste water from a food- factory was characterized and treated using snail shell. The aim was to find out the effectiveness of snail shell as a coagulant in waste water treatment. The result of the parameter studied before and after treatment, shows a change in color from dark brown before treatment to light brown after treatment, there was reduction in turbidity values from 332 - 133NTU, conductivity 0.294 - 0.164mscm -1 , total suspended solids 0.814- 0.184mg/l, total dissolved solids, total solids from 15600- 15200mg/l and 15600.2-15200.2mg/l respectively. There was decrease in BOD and COD values from 29.27-19.77mg/l and 872- 215mg/l respectively while the DO value increase from 1.14 - 2.16mg/l. Phosphate was completely removed. From the results, it shows that snail shell is effective in the treatment of waste water treatment. (Report and Opinion. 2009;1(3):53-57). (ISSN: 1553-9873).