An Assessment of the Pollution Load Capacity of Son La Hydropower Reservoir in the Northwest Mountains of Vietnam

2021 ◽  
pp. 405-413
Author(s):  
Duc Do Xuan ◽  
Hai Luu Duc ◽  
Tuan Do Huu
Author(s):  
A Azhar ◽  
E Barlian ◽  
I Dewata ◽  
A Amran ◽  
A Teguh ◽  
...  
Keyword(s):  

2019 ◽  
Vol 7 (2) ◽  
pp. 072
Author(s):  
Ajeng Alya Hidrijanti ◽  
Iwan Juwana ◽  
Yenita Sandra Sari

Abstract Cibeureum watershed is a river located on the border of Cimahi City and Bandung City and empties into the Citarum River. One of the Cibeureum watersheds is from the agriculture sector. Rice fields and gardens in South Cimahi are contributors to pollution in the Cibeureum Sub-watershed. Research on the assessment of pollution load capacity in the Cibeureum Sub-watershed to learn to understand and analyze the burden of the agricultural sector. In addition, the study of the capacity of pollution load in the Cibeureum River has never been carried out, so it is necessary to conduct a study of capacity. Calculation of pollutant load requires data on the area of paddy fields and gardens, emission factors and the number of planting days. Cibeureum watershed is a heavily polluted river after being calculated using pollutant methods with 11.09 results. Pollutant load of Cibeureum Sub-watershed agriculture sector in 2018 is 0.01689 kg/day BOD, 0.001501 kg/day Total-N, 0.0008 kg /day Total-P, and 0.000003 kg /day TSS. Pollutant load for Cibeureum Sub-watershed agriculture sector in 2018 is 0.103377 kg/day BOD, 0.009542 kg/day Total-N, 0.0048 kg/day Total-P, and 0.00508kg/day TSS. Pollutant load generated from the agricultural sector in the year of allocation will not be excluded from the budget for the development of Cimahi City Regulation Number 4 of 2013 concerning Spatial Planning and Cimahi City Areas for 2012-2032. Keywords: Pollutant Load, Agriculture Sector, Cibeureum Sub-watershed, Indonesia  AbstrakSub DAS Cibeureum merupakan sungai yang berada di perbatasan Kota Cimahi dan Kota Bandung dan bermuara ke Sungai Citarum. Pencemar yang masuk ke Sub DAS Cibeureum salah satunya berasal dari sektor pertanian. Sawah dan kebun yang berada di Cimahi Selatan merupakan kontributor terhadap pencemaran di Sub DAS Cibeureum. Penelitian kajian daya tampung beban pencemaran di Sub DAS Cibeureum bertujuan untuk mengetahui dan menganalisis beban pencemar dari sektor pertanian. Selain itu, kajian daya tampung beban pencemaran di Sungai Cibeureum belum pernah dilakukan sehingga perlu dilakukan kajian daya tampung. Perhitungan beban pencemar membutuhkan data luas lahan sawah dan kebun, faktor emisi dan jumlah hari tanam. Status mutu Sungai Cibeureum adalah sungai yang tercemar berat setelah dilakukan perhitungan menggunakan metode indeks pencemar dengan hasil 11,09. Beban pencemar sektor pertanian sawah  Sub DAS Cibeureum pada tahun 2018 sebesar 0,01689 kg/hari BOD, 0,001501 kg/hari Total-N, 0,0008 kg/hari Total-P, dan 0,000003 kg/hari TSS. Beban pencemar sektor pertanian kebun Sub DAS Cibeureum pada tahun 2018 sebesar 0,103377 kg/hari BOD, 0,009542 kg/hari Total-N, 0,0048 kg/hari  Total-P, dan 0,00508 kg/hari TSS.  Beban pencemar yang dihasilkan dari sektor pertanian pada tahun proyeksi tidak dijelaskan akan direncanakan mengalami peningkatan luas lahan dalam Peraturan Daerah Kota Cimahi Nomor 4 Tahun 2013 tentang Rencana Tata Ruang dan Wilayah Kota Cimahi Tahun 2012-2032 sehingga beban pencemar di tahun proyeksi tetap sama seperti tahun 2018. Kata Kunci: Beban Pencemar, Sektor Pertanian, Sub DAS Cibeureum, Indonesia


2020 ◽  
Vol 26 (2) ◽  
pp. 31-48
Author(s):  
Ayu Widya Utami ◽  
◽  
Pramiati Purwaningrum ◽  
Diana Irvindiaty Hendrawan ◽  
◽  
...  

Abstract. The downstream segment of Citarum River flows from Bendung Curug, Karawang Regency and ends at Muara Gembong, Bekasi Regency. The pollution of downstream segment of Citarum River is caused by settlement, agriculture, farm, and industrial activities that dump their waste into river bodies. This causes a decrease in water quality and reduce the carrying capacity of the downstream segment of Citarum River pollutant. The purpose of this research was to analyze the pollutant load capacity (PLC) in downstream segment of Citarum River using QUAL2Kw model. This research was carried out downstream of Citarum River from segments 16 to 20 which were divided into 9 sections with 11 locations monitoring water quality. Sampling was carried out for 3 periods of observation that the sampling is done twice at each location using grab sampling method. Water quality parameters being modeled are BOD, COD, nitrate, and phosphate. The results of the simulation model of PLC for BOD was 14556.67 kg/day-23456.84 kg/day, COD was 24261.12 kg/day-39094.73 kg/day, nitrate was 24261.12 kg/day-39094.73 kg/day, and phosphate was 485.22 kg/day-781.89 kg/day. Overload of BOD was 0%-26%, COD was 61%-68%, phosphate was 78%-7%. Meanwhile, nitrate load in the Citarum River downstream segment doesn’t exceed its pollutant load capacity. Keywords: Pollution Load Capacity, carrying capacity, Citarum River, Qual2Kw, water quality


Author(s):  
Made Santiari ◽  
I Wayan Nuarsa ◽  
I Wayan Budiarsa Suyasa

The water quality of Badung River in Pemogan village has exceeded the threshold limits.Therefore, It is needed to determinate the carrying capacity of Badung River. The determination of carrying capacity is very useful to control the disposal of waste into the Badung River. The objective of this study were to determine the sources of pollution, pollutant load and load capacity of Badung river at Pemogan village. Determination of pollutant source done with looked for land use and types of activities along the Badung river Pemogan village followed by field inspections. The pollution load was determined by multiplying the concentration of water quality and flow rate, while the carrying capacity was determined with the help of the program Qual2Kw ver 5.1. Determination of load capacity with Qualk2Kw ver 5.1 has several step such as data collect, the data entry process, calibration, verification and simulation according to the scenario. The result of this study showed sources of pollution that cause a decrease the water quality of Badung river in Pemogan village were non point source (agriculture and settlements) and point source (flow from upstream). The pollution load that flow into the Badung river in Pemogan village for BOD, COD and TSS respectively 419,97 kg/ day; 865,66 kg/day dan 160,70 kg/day. Load capacity of Badung river for COD and TSS were 1686.53 kg/day dan 4743.36 kg / day, Meanwhile, the load capacity of Badung River for BOD has overlimits.


2020 ◽  
Vol 20 (3) ◽  
pp. 626
Author(s):  
Vita Pramaningsih ◽  
Slamet Suprayogi ◽  
Ignasius Loyola Setyawan Purnama

The Rivers in Indonesia often accommodate pollution from all community activities. This happened due to a large number of people who use watersheds for living. One of those rivers is the Karang Mumus River in Samarinda City, East Kalimantan. This study aims to analyze the capacity of the Karang Mumus River pollution load in segments 2, 3 and 4. The analysis model used in this study was the QUAL2Kw and ArcGIS models. The former used to calculate the capacity of river pollution and the latter used to determine land use. The results of the QUAL2Kw Model analysis shown that the capacity of the BOD was exceeded in all segments, COD was exceeded in all segments except segment 3. The entire segment had an allocation of sectoral pollution load originated from domestic activities. This study concluded that the dominant land use of settlements was one of the main causes of this problem.


2018 ◽  
Author(s):  
Tien Zubaidah ◽  
Nieke Karnaningroem ◽  
Agus Slamet ◽  
Muhamad Ratodi

Due to the domestic waste, mining, plantation, agriculture and industrial disposal, Barito river has experienced a very serious water contamination. Therefore the researchers intended to investigate Barito river's ability in accommodating the pollution load in order to improve the river quality. In this article, the Biological Oxygen Demand (BOD) parameter has been selected as an index that reflected the organic contamination, while the QUAL2Kw stream model was used in conjunction with a potential pollutants identification and inventory activities as an effort to calculate the Barito river's ability to contain pollution loads. The results have shown that the Barito river has no longer have assimilation capacity for BOD. We have determined that the distribution of pollutant loads and total quantity controls has been able to help the Barito river water utilization to be more efficient.


Author(s):  
Elida Novita ◽  
Bawon Rani Yudhika Anwar ◽  
Hendra Andiananta Pradana

Gunung Pasang River is as raw water supply for the human activity. However, it is utilized as waste disposal from community activities, agro-tourism, and rubber factories. These activities have the potential to reduce water river quality. The efforts to river pollution prevention that can be taken are to examine for capacity of the rivers to reduce pollutant naturally. The research focused to analysis the pollution load, oxygen dissolved distribution (deoxygenation and reoxygenation rate), and the total pollution load of the Gunung Pasang river utilized the Streeter-Phelps formula. The study was conducted in November – December in 2019 at the Gunung Pasang River with a river length of 300 m which was divided into 3 segments with 4 monitoring points (GP01, GP02, GP03, GP04). Analysis of the parameters i.e. DO and BOD to measure the water quality degradation in the river and the resulting graph of oxygen reduction. The method refers to Minister of the Environment Decree no. 110/2003.The results showed that the average pollution load value was 6.32 kg/day. The range of deoxygenation and reoxygenation rates is 2.67 - 5.36 mg/L.day and 32.77 - 64.71 mg/L.day respectively. The Reoxygenation rate was greater than deoxygenation. This phenomenon reflected that the Gunung Pasang River has a good self – purification performance. The average pollution load capacity of the river is 2.17 kg/day.Keywords: total pollution capacity; oxygen distribution; self – purification; water quality monitoring.


Author(s):  
Mochammad Fariq Yogaswara ◽  
Iwan Juwana ◽  
Yenita Sandra Sari ◽  
Haroon Bakari

Sub Watershed of Cibabat is one of the rivers included in the Citarum Hulu River, which is located in Cimahi City. The industrial sector is one of the biggest contributors to the pollutant load that falls into the Sub Watershed of Cibabat. The number of industries in the Sub Watershed of Cibabat is 36 industries with different types of industries. <strong>Aims: </strong>This study was aimed to analyze the pollutant load entering the Cibabat River in existing conditions and projections especially those caused by the industrial sector. Besides, this study has never been conducted, so it was necessary to conduct a study of the pollution load capacity in the Sub Watershed of Cibabat, <strong>Methodology and results: </strong> The calculation of industrial sector pollution load was done by calculating the date of discharge<strong>, </strong>concentration, number of employees, number of products and emission factors (EF). The industrial sector pollution load in Sub Watershed of Cibabat in 2018 was 3,518.82 kg/day TSS, 8,231.83 kg/day BOD and 14,467.68 kg/day COD. The industrial sector pollution load in Sub Watershed of Cibabat in the projection year was 3,885.06 kg/day TSS, 9,088.61 kg/day BOD and 15,973.48 kg/day COD.


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