Erina Rahmadyanti, Elizabeth Titiek Winanti, Indiah Kustini
This paper presents the performance of combination system in processing coagulation using Moringaoleifera seeds and filtration of a one and two natural media to improve ground water quality. The natural media used was rice husk charcoal and sand. The ground water was characterized in third (III) to fourth IV class water classifications. Adding 100 mg/L Moringaoleifera seeds with two natural media filtration of rice husk charcoal followed by sand (K2T2) provably resulted on the best removal all parameters. This combination process provided turbidity removal efficiency of 84%, BOD removal of 89.02%, Manganese removal of 100%, electrical conductivity removal of 89.77%, and total coliform removal of 99.02%. However, this combination increased pH to 7.42 or 24.12% and decreased DO by 11.4 mg/L or 28.75%. Despite these, pH and DO met first (I) class water classification. Regrettably, decrease in DO caused by adding Moringaoleifera seed was due to technology limitation. As future potential, this research requires technology combinations which are able to maintain DO content in ground water. © IAEME Publication.
Department of Civil Engineering, Universitas Negeri Surabaya, Surabaya, East Java, Indonesia
