Publications by authors named "Diana Rahayuning Wulan"
Article Synopsis
- * Higher ozonation pH levels improved NP degradation but altered DBP formation, leading to reduced cytotoxicity at acidic and neutral pH, while increasing it at alkaline conditions.
- * The researchers concluded that pH adjustments are not necessary to lower DBPs during the ozonation of NP in bromide-rich water and suggest further exploration of natural organic matter's role in DBP production.
Pyrethroid residues in the Citarum River, Indonesia, was first investigated based on their occurrences, water assimilative capacity, and risk assessment. In this paper, first, a relatively simple and efficient method was built and validated for analysis of seven pyrethroids in a river water matrix: bifenthrin, fenpropathrin, permethrin, β-cyfluthrin, cypermethrin, fenvalerate, and deltamethrin. Next, the validated method was used to analyze pyrethroids in the Citarum River.
View Article and Find Full Text PDFThis review discusses disinfection by-products' (DBPs) potential precursors, formation, and toxicity, alongside available research on the treatment of DBPs in Southeast Asian countries' water sources. Although natural organic matter (NOM) in the form of humic and fulvic acids is the major precursor of DBPs formation, the presence of anthropogenic organic matter (AOM) also plays essential roles during disinfection using chlorine. NOM has been observed in water sources in Southeast Asian countries, with a relatively high concentration in peat-influenced water sources and a relatively low concentration in non-peat-influenced water sources.
View Article and Find Full Text PDFAssessment of shallow groundwater contamination on Pari Island, Indonesia.
Environ Monit Assess
November 2022
Article Synopsis
- The study focused on shallow groundwater quality changes on Pari Island, Indonesia, a small island with limited freshwater sources due to its monsoon climate.
- Researchers evaluated the water quality from ten wells during both dry and wet seasons, using hydrochemical analysis methods to identify variations.
- Factors like evaporation, geology, tides, and wave height influenced groundwater fluctuations, impacting how rainwater and seawater interacted with the freshwater aquifer and affecting contamination dilution processes.
Domestic wastewater in Indonesia: generation, characteristics and treatment.
Environ Sci Pollut Res Int
May 2022
Article Synopsis
- Indonesia has a population of 270 million, leading to significant domestic wastewater generation, with grey water quantities being 1 to 4 times higher than black water.
- Untreated grey water poses a major pollution threat, being 3 to 6 times more prevalent than untreated black water, with concerning levels of contaminants like suspended solids and nitrogen.
- Improving wastewater treatment is crucial, as current on-site black water systems often lack quality control; implementing incentive or penalty schemes could enhance treatment quality at various community levels.
The Cipeles watershed is the largest subsystem of the Cimanuk watershed, which is located in an agricultural area. Some segments of the Cipeles River are appropriate for aquatic life habitat. To assess the pollutant risk from heavy metals, which tend to accumulate in the environment, this study determined the heavy metal concentrations as a basic database, calculate the heavy metal pollution index (HMPI), and assess the correlation between heavy metals from the surface and pore waters of Cipeles River.
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