Hydrogen Sulphide Emission Rates Originating from Anaerobic Waste Stabilization Ponds

Abstract

It is believed that the most economic solution for treating domestic and industrial wastewaters is the biological treatment processes. Waste stabilization ponds (WSPs) are unique processes which are used where land is inexpensive, organic and hydraulic loadings fluctuate, maintenance and operation of the system need to be easy. In the anaerobic type of the WSPs, (AWSPs), sulphate (SO₄ ⁻²) is reduced to sulphide (S⁻²). Hydrogen sulphide (H₂S) is emitted into atmosphere depending on liquid pH. In this study, data collected from a lab- and a land-scale AWSPs were used to estimate the theoretical H₂S emission rates. The mean values of the systems were same, 0.594 g m⁻² h⁻¹.

Keywords:

• Anaerobic pond
• sulphate reduction
• sulphide production
• emission rate