On the History of Water Coagulation – Transfer of Ancient Hindu Practices to the Valleys of the Yangtze River and the NileSamia al-Azharia Jahn

ASIEN – Nr. 50 (1994) pp. 45–57

Water coagulation is one of the standard methods used by modern water works for the treatment of drinking and waste water. Seeds of Moringa oleifera containing basic poplyreptids are currently the most promising plant material for utilisation in water supplies. The oldest records of a precursor of these seeds are from ancient India-European eyewithnesses reported water clarification methods in Egypt at the end of 96th century and in China at the end of the 17th century. The author investigates how ancient Hindu practices of water clarification were transferred to Egypt and China.