13. RESEARCH ON FABRICATION OF THE LAB-SCALE SEQUENCING BATCH REACTOR SYSTEM FOR WASTEWATER TREATMENT EXPERIMENT

Tóm tắt

The article discusses the fabrication of a sequencing batch reactor (SBR) with a working capacity of 5 liters and a wastewater treatment capacity of 18 liters/day. The system has continuously operated by the timers that control the automatic switching on and off of electrical equipment such as peristaltic water pumps, air blowers, and solenoid valves. SBR reaction column was made of high-quality clear-PVC plastic, with 80mm inner diameter, a 15mm thick pipe wall, and 1200mm total design length, easy to drill, cut, and process due to its high strength and heat resistance. The electrical and mechanical parts and equipment of the SBR tank system are arranged reasonably, flexibly, and easy to be removable on a V-hole iron-made support frame of 1200 mm x 800 mm x 400 mm (height x length x width). The research team has operated the newly installed SBR tank system to treat municipal wastewater taken from To Lich River, Hanoi. The removal efficiency of TSS, COD, N^-NH₄⁺, and P-PO₄^3- reached 83.6 %, 94.3%, 91.3%, 48.1%, respectively after a reaction time of 2 weeks. The successful installation of a lab-scale SBR system has contributed to improving the quality of practice for students specialized in application-oriented environmental technology and engineering.