Figure 3. Second Level COD removal

From

Remediation of Domestic Wastewater Runoff Using Vermi-biofiltration

Amornrat Phothisansakul, Theerawat Runguphan

International Journal of Environmental Bioremediation & Biodegradation. 2017, 5(2), 60-64 doi:10.12691/ijebb-5-2-4