One-Dimensional Pollutant Transport Modelling of Cadmium (Cd), Chromium (Cr) and Lead (Pb) in Saguling Reservoir

Wiguna Sudiartha Gede Adi,Sukarjo Sukarjo,Handayani Cici,Oginawati Katharina,Sulaeman Sulaeman,Sofyan Asep,Ardiwinata Ardiwinata,Kurnia Asep,A Soleh Setiyawan,M Sonny Abfertiawan,D Roosmini,A Nastiti,H Dwi Ariesyady

doi:10.1051/e3sconf/202014807009

Abstract

The existing conditions of the Saguling Reservoir are reported to have suffered severe heavy metal pollution due to the presence of wastewater inputs from various types of industries flowing into Citarum River and then accumulating in the Saguling Reservoir. From the results of calibration tests of heavy metal models on water using the Root Mean Square Error (RMSE) analysis and Relative Error (RE) analysis, obtained dispersion coefficients on Cadmium, Chromium, and Lead metals sequentially 1 m2 / second (with RMSE 0,00515 and 34% relative error); 1 m2 / second (with RMSE 0.00595 and relative error 26%); and 2.5 m2 / second (with RMSE 0.028205 and relative error 41.25%) which shows that the model has good capability to simulate the concentration of heavy metals approaching the actual data both in the dry and wet seasons. From the results of the verification test models of concentration of cadmium, lead and chromium in sediments using the Root Mean Square Error (RMSE) analysis and Relative Error (RE) analysis, obtained sequentially 18.53 and 77%; 10.43 and 47.15%; 2.789 and 33%. Error values in sediment concentrations are quite large because of the difficulty of making assumptions that are close to natural conditions.

Highlights

The existing condition of the Saguling Reservoir has suffered severe heavy metal pollution due to the presence of wastewater inputs from various types of industries entering through the Citarum River and accumulating in the Saguling Reservoir
Based on Citarum River water quality data collected at Nanjung Station in 2013 (Input of Saguling Reservoir) some heavy metals were found with a concentration of Cadmium (Cd) of 0.05 mg / L; Chromium (Cr) of 0.23 mg / L; and Lead (Pb) of 0.33 mg / L
Cadmium and Lead simulations in this paper are represented by only in Segment 1 while the Chromium concentration represented by Segment 2 is done because of historical data, Chromium in segment 1 is not detected, upstream boundary concentration for segment 1 is 0 mg / L

Summary

Introduction

According to West Java BPLHD there were approximately 542 industries that strays along the bank of Citarum River which dispose its waste along the river flow and discharged into Saguling Reservoir. These industries are dominated by the textile industry which is about 73% of the total type of industries. Based on Citarum River water quality data collected at Nanjung Station in 2013 (Input of Saguling Reservoir) some heavy metals were found with a concentration of Cadmium (Cd) of 0.05 mg / L; Chromium (Cr) of 0.23 mg / L; and Lead (Pb) of 0.33 mg / L. In the Saguling Reservoir which is a reservoir to contain the water flow from the Citarum River itself has a concentration of Cd ranging from 0 mg/L - 0.14 mg / L in water.

Methods

Results

Conclusion