ผลของจำนวนแผ่นกั้นที่มีต่อการบำบัดน้ำเสียโรงงานยางข้นโดยใช้ระบบเอบีอาร์

Abstract

The concentrated latex wastewater contains chemicals and sulfate resulted from large amount of sulfate acid used in production process to catch latex. So this process make negative effect on the environment, especially water pollution to natural water resources. The objective of this study was to investigate the performance of anaerobic baffled reactor (ABR) in treating concentrated latex wastewater by varying baffle number in reactors and organic loading rates (OLR). ABR reactors consisting of 3, 5 and 7 baffles with a same total working volume of 14 L were used in this study. Each ABR was operated at HRT 5 days with OLR 3 kgCOD / m³ – day. From the results, it was found that the reactor with 7 baffles had the highest removal efficiencies for all parameters. Average COD removal performance were 80.36 %, 78.40 % and 75.18 %; and suspended solid removal performance were 87.18 %, 82.29 and 86.10 % for ABRs with 7 baffles, 5 baffles and 3 baffles, respectively. ABR almost completely removed sulfate from wastewater as removal percentages at 98.19 %, 98.42 % and 99.50 % were obtained with ABRs with 3 baffles, 5 bafflrs and 7 baffles, respectively.