Application of Iodized In Farm and Haloferax Bacteria Technology for Salt Production in Order to Make Zero Waste Salt Consumption Industry

Center for Industrial Pollution Prevention Technology, Industrial Research and Development Agency, Ministry of Industry, Jl. Ki Mangunsarkoro No. 6 Semarang – Indonesia

^* Corresponding author: nilawatibbtppi64@gmail.com

Abstract

The consumption salt industry produces wastewater in the raw material washing unit. The washing water generated if water concentration already exceeds 250Be, most of its water removed, usually dumped into the environment around the factory, with a volume of about 1.5 m3 per 10 tons of salt washed. Everyday industry wash 60-70 tons salt. So the environment would pollute, because there were metals and chemical contaminants, such as MgSO4, MgCl2, and CaSO4. The aims this research to produce iodized salt from the field and containing NaCl above 94 percent which combines technology with the injection iodized in farm and Haloferax bacteria so consumed salt industry will not need washing and iodizing again. Application experiment performed 3 times which 2 replication without and with using Haloferax bacteria and additional treatment KIO3 solution concentration of 70 and 80 ppm. Results showed that best treatment was addition KIO3 70 ppm and treatment of bacterial Haloferax with KIO3 51,89-56.58 ppm and NaCl were 94.44 to 94.95 percent. SEM EDX test results, salt cube-shaped or rectangle, treatment without addition the bacteria and the crystal morphology of appearing smaller.