Wastewater management presents a myriad of challenges to homeowners. A faulty wastewater system causes foul odours and land contamination. Such situations could get you in trouble with the local authorities. Besides, you will have a difficult time selling the property. So, what entails an effective domestic wastewater treatment system? Below is a comprehensive extract. There are two types of domestic wastewater management systems; centralised and decentralised systems. Centralised systems are commonly used in urban and peri-urban areas.