Using a systematic approach to develop water quality management strategies in the Nankan River, Taiwan

Chou Ping Yang, Pen Chi Chiang, E. E. Chang, Tsair Fuh Lin, Chih Ming Kao

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The Nankan River, located in northern Taiwan, is one of the most contaminated rivers in Taiwan. The pollution of this river causes odor problems and affects use of the water resources. In this study, a systematic river basin water quality management strategy was developed to simulate water quality, evaluate wastewater management alternatives, and cost-effectiveness strategy plans for the Nankan River restoration and its water quality improvement. The main tasks consist of river water sampling and analysis, water quality modeling, total maximum daily load (TMDL) calculation, river pollution index (RPI) evaluation, and cost-effectiveness analysis (CEA). The QUAL2K model, developed by US Environmental Protection Agency, was adopted as the river water quality modeling framework in this study. The modeling effort was supported including four water quality data-sets of the river. Results of the water quality modeling show that the calculated TMDL for biochemical oxygen demand (BOD) and ammonia loading were 1,334 and 889 kg/day, respectively. Approximately, 1,334 kg/day of BOD and 889 kg/day of ammonia needed to be reduced to improve the RPI from "serious pollution" level to "moderate pollution" level. Results also reveal that the odor problem caused by dimethyl sulfide and dimethyl trisulfide could be removed after the water quality improvement. Results from the CEA show that an annual cost of US$ 8 million is required to reach the acceptable RPI level (moderate pollution). The developed strategies can be used as decision-making tools for water pollution control and river basin water quality management for the Nankan River and other similar rivers.

Original languageEnglish
Pages (from-to)6808-6823
Number of pages16
JournalDesalination and Water Treatment
Volume51
Issue number34-36
DOIs
Publication statusPublished - 2013

Fingerprint

Quality management
Water quality
Rivers
river pollution
river
water quality
River pollution
pollution
cost analysis
biochemical oxygen demand
Pollution
Cost effectiveness
odor
modeling
river water
ammonia
river basin
Biochemical oxygen demand
Odors
Catchments

Keywords

  • Cost-effectiveness analysis
  • Key performance indicators
  • Point sources pollution
  • QUAL2K
  • River basin management
  • Total maximum daily load

ASJC Scopus subject areas

  • Pollution
  • Water Science and Technology
  • Ocean Engineering

Cite this

Using a systematic approach to develop water quality management strategies in the Nankan River, Taiwan. / Yang, Chou Ping; Chiang, Pen Chi; Chang, E. E.; Lin, Tsair Fuh; Kao, Chih Ming.

In: Desalination and Water Treatment, Vol. 51, No. 34-36, 2013, p. 6808-6823.

Research output: Contribution to journalArticle

Yang, Chou Ping ; Chiang, Pen Chi ; Chang, E. E. ; Lin, Tsair Fuh ; Kao, Chih Ming. / Using a systematic approach to develop water quality management strategies in the Nankan River, Taiwan. In: Desalination and Water Treatment. 2013 ; Vol. 51, No. 34-36. pp. 6808-6823.
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