Figure 1. Efficiency of ASP and OP for BOD, COD and TSS removal

From

Performance Evaluation of Prevailing Biological Wastewater Treatment Systems in West Bengal, India

Dipu Sukumaran, Rita Saha, Rakesh Chandra Saxena

Applied Ecology and Environmental Sciences. 2015, 3(1), 1-4 doi:10.12691/aees-3-1-1