A Comparative Study of Water Quality Characteristics at East Java River

Wahyuningsih, Sri; Anwar, Nadjadji; Edijatno, Edijatno; Karnaningroem, Nieke

doi:10.12962/j20882033.v21i4.91

Cited by 3 publications

(4 citation statements)

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“…A higher COD at point I in the morning was potentially affected by the peak hour of all activities from wasting to running off while by the time all the substances existed altogether in waters flowed down along the rivers passing through point II. It is confirmed by [11] that oftentimes, rivers were tangent with agricultural and industrial waste that contributed to any kind of chemical substances that could intensify the pollution occurrences in rivers.…”

Section: Chemical Oxygen Demand (Cod)mentioning

confidence: 91%

“…For pH, all observed times in this research were still in the range of thresholds determined. It has a relatively normal acidity level (6.4-6.5) [11].Wastewater status at point I. Point I is a sampling site taken before the outlet of wastewater flowing through.…”

Section: Figure 2 Wastewater Level Towards the Quality Standard At Tw...mentioning

confidence: 99%

“…Outlet accounted for the lowest point of BOD (4.2 mg/L) and increased more from point I (5.3 mg/L) to point II (5.9 mg/L). Despite of slight discrepancy, it has an inverse connection with the DO level that decreased to the downstream once BOD was in the upper [11]. An occurrence of higher BOD concentration after the outlet compared to two other sites was allegedly due to a mixture of domestic water waste from the outlet and any sources containing organic pollutants from upstream [12].…”

Section: Distribution Of Wastewater Status Based On Sampling Sites An...mentioning

confidence: 99%

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The distribution of domestic wastewater effect on the Palu river

Nasir,

Zeffitni,

Kadir

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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The Palu River is one of the largest rivers in Central Sulawesi and acts as a tourist attraction and a mode of commercial economy for local communities. These activities contribute to the production of domestic wastewater that can be a pollutant for rivers and affect the survival of aquatic organisms. This research aims to determine the distribution of domestic wastewater on the Palu River by identifying the physical and chemical quality of the water. This research is quantitative by direct measurements in the field and by testing river water quality in the laboratory. Sampling used the grab sampling method at three location points, they are at the outlet, before the outlet (point I), and after the outlet (point II), carried out at two different times, in the morning and afternoon. The tested parameters consist of TSS, turbidity, temperature, pH, COD, BOD, DO, and oil and fat. Modeling the distribution of river water quality after being contaminated by domestic waste used by surfers 13. The results showed that at point I and point II, the overall parameters did not exceed the river water quality standards for class III, but at the outlet, oil, and fat failed (1.275 mg/L). Based on the sampling time, in the morning TSS and BOD were the only parameters that approached the limit for both point I (99 mg/L and 5.80 ppm) and point II (97 mg/L and 5.47 ppm). In the afternoon, the COD value was so close to the standard of 40 ppm (35.64 ppm), and TSS at the point I (247 mg/L) and point II (297 mg/L) excelled the safe limit but did not make it at the outlet (15 mg/L). The rest parameters remained at safe limits. Overall, the physical and chemical quality of the river at all sampling points for BOD, oil and fat, turbidity, and temperature parameters tended to be higher in the morning than in the afternoon, while COD, DO, TSS, and pH did reversely.

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Section: Chemical Oxygen Demand (Cod)mentioning

confidence: 91%

Section: Figure 2 Wastewater Level Towards the Quality Standard At Tw...mentioning

confidence: 99%

Section: Distribution Of Wastewater Status Based On Sampling Sites An...mentioning

confidence: 99%

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The distribution of domestic wastewater effect on the Palu river

Nasir,

Zeffitni,

Kadir

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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“…Berbagai metode langsung dan tidak langsung serta model numerik telah digunakan untuk mengestimasi imbuhan airtanah (Sanford, 2002;Singh et al, 2019). Banyak peneliti menggunakan metode Thornthwaite (Mintz dan Serafini, 1992;Xu dan Chen, 2005;Westenbroek et al, 2010;Hartanto, 2017), Dingman (D'Almeida et al, 2006), Dingman−Hamon (Křeček et al, 2006;Kobiyama, 2008;Bakundukize et al, 2011), dan Edijatno−Michel (Wahyuningsih et al, 2010;Hidayah et al, 2011) (Xu dan Chen, 2005;Westenbroek et al, 2010;Guardiola-Albert et al, 2015). (Santosa, 1991;Rusmana et al, 1991dalam Hartanto et al, 2007.…”

Section: Pendahuluanunclassified

Estimasi Imbuhan Airtanah Das Cidanau Menggunakan Model Neraca Kesetimbangan Air

Nugraha

Hartanto²,

Bakti³

et al. 2020

Ris.Geo.Tam

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Airtanah merupakan faktor penting bagi pembangunan ekonomi di wilayah Serang Barat dan Kota Cilegon, dimana kedua wilayah ini terletak di dalam DAS Cidanau. Selain itu, imbuhan airtanah sangat dibutuhkan untuk memastikan keberlanjutan dan pengelolaan airtanah di suatu wilayah. Penelitian ini bertujuan untuk mengestimasi resapan airtanah DAS Cidanau menggunakan metode Thornthwaite, Dingman, Dingman−Hamon dan Edijatno−Michel. Keempat metode estimasi pengimbuhan airtanah tersebut merupakan metode kesetimbangan air yang berlandaskan model neraca kesetimbangan air. Software ESPERE version 2 digunakan untuk menganalisis kesetimbangan air berdasarkan keempat metode tersebut. Hasil penelitian menunjukkan terdapat tiga klaster nilai imbuhan airtanah di lokasi penelitian yaitu Thronthwaite (157 mm/tahun), Dingman−Hamon (125 mm/tahun), dan Edijatno−Michel (186 mm/tahun). Ketiga perbedaan nilai ini disebabkan oleh adanya perbedaan kalkulasi nilai hujan efektif metodemetode tersebut, dimana metode Dingman dan metode Edijatno−Michel memiliki kecenderungan pola kalkulasi yang sama. Imbuhan airtanah hanya sekitar 7,8 -11,6 % dari jumlah hujan tahunan yang ada di lokasi penelitian. Sekitar 80 % dari hujan tahunan di konversikan menjadi evapotranspirasi potensial dan sisanya menjadi limpasan permukaan. Dengan mempertimbangkan kondisi geologihidrometeorologi Indonesia yang cenderung kompleks, metode Thornthwaite dan metode Dingman−Hamon direkomendasikan untuk perhitungan nilai imbuhan airtanah yang ada di Indonesia. Kata kunci: airtanah, imbuhan, kesetimbangan air ABSTRACT − Groundwater Recharge Estimation using Water Budget Method in Cidanau Watershed. Groundwater is an important factor for economic development in West Serang and Cilegon City. These areas are located within the Cidanau watershed. Moreover, groundwater recharge is crucial to ensure the sustainability and the management of groundwater in an area. This study aims to estimate groundwater recharge in the Cidanau watershed using the Thornthwaite, Dingman, Dingman−Hamon, and Edijatno−Michel methods. These four groundwater recharge estimation methods are water budget method based on the water balance model analysis using the ESPERE version 2 software. The results show three clusters of annual groundwater recharge values in the research location, which are Thronthwaite (157 mm/year), Dingman−Hamon (125 mm / year), and Edijatno−Michel (186 mm / year). The three different values were derived from differences in the effective rainfall values calculations in those three methods. The Dingman and the Edijatno−Michel method tend to have a similar calculation pattern. The groundwater recharge is only 7.8 − 11.6 % of the total annual rainfall in the study area. It is estimated that 80% of the annual rainfall is converted into potential evapotranspiration, and the rest becomes surface runoff.

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Environmental risk analysis of The Bedadung Watershed By Using DPSIR

Puspitasari

Pradana

Novita

et al. 2020

IOP Conf. Ser.: Earth Environ. Sci.

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Bedadung River is one of the most strategicrivers located in the Bedadung Watershed in Jember. This river crosses Jember with a length of 46,875 meters and it is used as a source of raw water and irrigation as well as a source for PDAM in Jember. Along with many activities of the community, the water pollution load increases significantly. In general, the source of pollution comes from anthropogenic activities in the form of exposure to domestic waste, industrialization, population growth, pesticides and fertilizers, organic and inorganic waste, urban development and weak management systems. This study aims to analyze the environmental risks in the bedadung watershed based on water quality data using DPSIR method. The DPSIR (Driver-Pressure-State-Impact-Response) framework has been used as one of the tools in environmental risk analysis that shows the existence of linear interactions between human activities-pressure and impact. In general, human activities are part of the drivers and human needs that can cause pressure on the environment. This pressure has the potential to cause certain negative impacts that need handling to reduce it. The DPSIR framework which being used is Driver (industry, garbage); Pressure (changes in the chemical composition of water); State (physical and chemical characters); Impact (changes in water quality); and Response (limiting waste disposal to rivers).

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A Comparative Study of Water Quality Characteristics at East Java River

Cited by 3 publications

References 0 publications

The distribution of domestic wastewater effect on the Palu river

The distribution of domestic wastewater effect on the Palu river

Estimasi Imbuhan Airtanah Das Cidanau Menggunakan Model Neraca Kesetimbangan Air

Environmental risk analysis of The Bedadung Watershed By Using DPSIR

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