Optimalisasi Pengolahan Air Limbah Industri Cold Storage Sistim Plug Flow Activated Sludge

Haspiadi Haspiadi

Jurnal Riset Teknologi Industri
Vol 5 No 10 Desember 2011

The purpose of this research was to treat wastewater from cold storage industries using the plug flow activated sludge process at the laboratory scale. Various were that used in this research are 0 (control), 6, 12, 18 and 30 hours for Hidrolic Retention Time (HRT) and also numbers of seeding are 0,5 %, 1 %, 1,5 %, and 0 % (control) taken from the ditches of cold storage industry. The research result indicated that generally, there was decrease of pollutant concentration in both control and treated samples by adding seeding. The best result in efficiency without adding seeding as a contorl were obtained in 30 hours, and were able to achieve a 75 percent Total Suspended Solid reduction and 87,76 percent removed COD. Whereas the best result in efficiency by adding seeding 1% was obtained in 24 hours, it was possible to acieve 75,71 percent Total Suspended Solid reduction and remove COD by 83,33 percent.