• Vol 6, No 4 (2015)
  • Civil Engineering

Modeling of Domestic Wastewater Treatment Facultative Stabilization Ponds

Sunarsih , Purwanto , Wahyu Setia Budi


Published at : 27 Oct 2015
IJtech : IJtech Vol 6, No 4 (2015)
DOI : https://doi.org/10.14716/ijtech.v6i4.2175

Cite this article as:

Sunarsih, Purwanto, Budi, W.S., 2015. Modeling of Domestic Wastewater Treatment Facultative Stabilization Ponds. International Journal of Technology. Volume 6(4), pp. 689-698

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Sunarsih Doctoral Program of Environmental Science, Diponegoro University, Jl. Imam Barjo, SH No.5, Semarang 50241, Jawa Tengah, Indonesia
Purwanto Chemical Engineering Department, Faculty of Engineering Diponegoro University, Jl. Prof. H. Soedarto, SH., Tembalang, Semarang 50275, Jawa Tengah, Indonesia
Wahyu Setia Budi Faculty of Science and Mathematics, Diponegoro University, Jl. Prof. H. Soedarto, SH., Tembalang, Semarang 50275, Jawa Tengah, Indonesia
Email to Corresponding Author

Abstract
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processes of Biological treatment intend to reduce the organic matter content by using microorganisms. Problems, which often occur in the treatment process, include the Wastewater Treatment Plant (WWTP) being planned for treating domestic wastewater only, but in fact the WWTP often receives non-domestic wastewater particularly direct or indirect faecal deposits. There are 13 simultaneous systems of nonlinear differential equations using the method of Runge-Kutta-Fehlberg (RKF45). Data validation is measured in a facultative stabilization pond at a distance of 0 m, 25 m, 50 m and 75 m respectively. Samples are taken at the inlet and outlet of the pond covering the concentration of Bacteria (B), Algae (A), Zooplankton (Z), Organic Matter (OM), Detritus (D), Organic Nitrogen (ON), Ammonia (NH3), Organic Phosphorus (OP), Soluble Phosphorus (SP), Dissolved Oxygen (DO), Total Coliform (TC), Faecal Coliform (FC), and Biochemical Oxygen Demand (BOD). The research comparing observation and count data results in 11 kinds of concentration that have a relative error <20% and 2 concentrations > 20%, namely Chemical Oxygen Demand (COD) and Faecal Coliform.(FC). Wastewater quality is predicted with 45o angle charts and tolerance ± 20%, respectively for BOD (76.8%), COD (57.7%) and DO (81.9%). The model, as a means for performance evaluation of the WWTP, is appropriate for Class II water quality standards.

Domestic waste water, Facultative Stabilization Pond, Performance evaluation, Waste Water Treatment Plant (WWTP)

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