Resources / Water quality and pollutant load in the ambient water and domestic wastewater pollutant discharges in the developing countries: survey results in autumn and winter in 2006

Summary

Domestic wastewater pollutant discharges and water quality in the ambient water were studied in Dhaka, Bangladesh, and Bangkok, Thailand. Water quality measurements with simple kits were identified to illustrate water quality profiles in and around these cities to some extent. Water quality in the Sitalakhaya River, Bangladesh, and in the peri-urban section of the Chao Phraya River, Thailand, vertical homogeneity was observed for parameters measured with a water quality data logger. Estimated pollutant discharges per capita were larger than those in Japan for BOD, TN and TP in Pak Kret Municipality, peri-urban of Bangkok, when seepage and septage from septic tank and leachate from composting (“seepages”) were included. Introduction of wastewater treatment methods with larger removal rates should be considered for the ambient water quality improvement together with MDGs perspective of appropriate sanitation.