This book offers a new paradigm shift in water and wastewater treatment. The use of plant materials with coagulants and a disinfection property has been researched, in tandem with plastic anaerobic digesters. The slow sand filter systems for treating water, is well known, but takes time to generate clean water, while more that 1·2 billion people continue to drink suspicious or unsafe water. Research on plant coagulants such as Moringa Oliefera and others, has been thus far limited to the isolation of pure compounds and has taken several years. Minimal efforts though, have been directed towards practical water treatment systems on the ground, which are resilient while utilising available resources. The shift in technological thought here is rather to integrate the two simple technologies of sand filters and plant coagulants to bring about clean water within a relatively short space of time, employing clean plastic digesters to decontaminate wastewater. Laboratory data and practical field experimentation are provided in this book to prove the potentials available within these technologies.