TY - JOUR
T1 - Dissolved oxygen dynamic system model for the determination of the waste assimilating capacity at Brantas river Malang city
AU - Hendriarianti, Evy
AU - Karnaningroem, Nieke
AU - Siswanto, Nurhadi
AU - Hadi, Wahjono
AU - Eddy, Setiadi S.
AU - Notodarmojo, Suprihanto
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2019/1/17
Y1 - 2019/1/17
N2 - River quality standard in Indonesia still determined normatively. It apply for all river with various conditions. This is not appropriate for water quality management because each river have different characteristics to keep the optimal condition for the life in water body. With dynamic system model of dissolved oxygen (DO), DO's changes can be approached. DO is the most important parameter to know the quality of water body. Furthermore, it could be used for estimate waste assimilating capacity (WAC) for organic waste to be discharged to water body for optimal DO's condition. This research is to make dynamic system model of DO's river using Stella v9.1.3 application. Object research located on Brantas River at Malang city. The behaviors of DO's kinetics for each monitoring point at Brantas river Malang city are approached with the dynamic system model of DO that had done verified and validated with the constrain: (1) reaeration rate of the river for typical rivers as much 1.5 / day; (2) SOD's deoxygenation rate is assumed as much 5 grO 2 /m 2 for Brantas river with moderately pollution. From the result of sensitivity analysis of DO's dynamic system model can be determined range value for optimal DO for fish's life. The WAC for pollutant of BOD, NH 3 and NO 2 can be determined also. For rainy season in 2015, the WAC for the river pollutant of BOD have used almost all. Different condition of used WAC for NH 3 and NO 2 . The remaining WAC for NH 3 and NO 2 are still near the available WAC.
AB - River quality standard in Indonesia still determined normatively. It apply for all river with various conditions. This is not appropriate for water quality management because each river have different characteristics to keep the optimal condition for the life in water body. With dynamic system model of dissolved oxygen (DO), DO's changes can be approached. DO is the most important parameter to know the quality of water body. Furthermore, it could be used for estimate waste assimilating capacity (WAC) for organic waste to be discharged to water body for optimal DO's condition. This research is to make dynamic system model of DO's river using Stella v9.1.3 application. Object research located on Brantas River at Malang city. The behaviors of DO's kinetics for each monitoring point at Brantas river Malang city are approached with the dynamic system model of DO that had done verified and validated with the constrain: (1) reaeration rate of the river for typical rivers as much 1.5 / day; (2) SOD's deoxygenation rate is assumed as much 5 grO 2 /m 2 for Brantas river with moderately pollution. From the result of sensitivity analysis of DO's dynamic system model can be determined range value for optimal DO for fish's life. The WAC for pollutant of BOD, NH 3 and NO 2 can be determined also. For rainy season in 2015, the WAC for the river pollutant of BOD have used almost all. Different condition of used WAC for NH 3 and NO 2 . The remaining WAC for NH 3 and NO 2 are still near the available WAC.
UR - http://www.scopus.com/inward/record.url?scp=85060992089&partnerID=8YFLogxK
U2 - 10.1088/1757-899X/469/1/012028
DO - 10.1088/1757-899X/469/1/012028
M3 - Conference article
AN - SCOPUS:85060992089
SN - 1757-8981
VL - 469
JO - IOP Conference Series: Materials Science and Engineering
JF - IOP Conference Series: Materials Science and Engineering
IS - 1
M1 - 012028
T2 - 1st International Postgraduate Conference on Mechanical Engineering, IPCME 2018
Y2 - 31 October 2018 through 31 October 2018
ER -
