Application of Riverbank Integrated Super-Magnetic Separation in River Water Environment Management

Abstract

Riverbank integrated super-magnetic separation (ISMS) played an important role in river water (RW) environment management when the diminishing of suspension is a major task. This paper provides a comprehensive analysis of its operation performance from the perspective of pollutant controlling and carbon mitigation potential using the method proposed by intergovernmental panel on climate change. The results showed that turbidity of discharge from ISMS is maintained below 3 NTU and total phosphate removal above 85%. From ISMS to sludge dewater and final incineration, the net carbon emission can is negative at -0.07 kgCO2/m3RW thanks to incineration with combined heat and power generation and cement substitute by slag. The indirect carbon emission associated with the use of PAC and PAM contributed 79% of the total emissions which amounted to 0.087 kgCO2/m3RW. Future work is suggested on accurate dosing adjustment for cost reduction and carbon mitigation.