scholarly journals ANALISIS KAPASITAS BEBAN POLUTAN RUAS HILIR SUNGAI CITARUM MENGGUNAKAN QUAL2KW

2020 ◽  
Vol 26 (2) ◽  
pp. 31-48
Author(s):  
Ayu Widya Utami ◽  
◽  
Pramiati Purwaningrum ◽  
Diana Irvindiaty Hendrawan ◽  
◽  
...  
Keyword(s):  
Water Quality ◽  
Carrying Capacity ◽  
Sampling Method ◽  
Load Capacity ◽  
Quality Parameters ◽  
Pollution Load ◽  
Grab Sampling ◽  
Industrial Activities ◽  
Pollutant Load ◽  
Nitrate Load

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

scholarly journals PENETAPAN DAYA TAMPUNG BEBAN PENCEMARAN SUNGAI BADUNG DI DESA PEMOGAN

2016 ◽  
Vol 10 (2) ◽  
pp. 142
Author(s):  
Made Santiari ◽  
I Wayan Nuarsa ◽  
I Wayan Budiarsa Suyasa
Keyword(s):  
Water Quality ◽  
Point Source ◽  
Carrying Capacity ◽  
Load Capacity ◽  
Data Entry ◽  
Pollution Load ◽  
Sources Of Pollution ◽  
Pollutant Source

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.

scholarly journals WATER QUALITY ANALYSIS AND POLLUTION LOAD CAPACITY OF RIVER KAPUAS IN MUKOK DISTRICT, SANGGAU REGENCY

2021 ◽  
Vol 10 (1) ◽  
pp. 022
Author(s):  
Katarina Dwi Yanti
Keyword(s):  
Water Quality ◽  
Oil Palm ◽  
Load Capacity ◽  
Pollution Index ◽  
Class Ii ◽  
Quality Standard ◽  
Quality Analysis ◽  
Pollution Load ◽  
Pollutant Load ◽  
Water Quality Standard

The Kapuas River in Mukok District is a 22-kilometer-long branch of the Kapuas River in West Kalimantan Province. Various activities in Mukok District, Sanggau Regency, contribute to a decrease in the water quality of the Kapuas River. The purpose of this study is to inventory and identify pollution sources, calculate the Pollution Index, determine the potential pollutant load, and calculate the pollutant load capacity. The water quality standard used is class II, as defined by Government Regulation (PP) No. 28 of 2001. According to the findings of the identification and inventory, the sources of pollution on the banks of the Kapuas River in Mukok District, Sanggau Regency, are settlements, livestock, industry, rice fields, and oil palm plantations. The water quality standard of the Kapuas river in Mukok District, Sanggau Regency, based on the class II water quality standard, has exceeded the class II quality standard limit for parameters BOD, COD, DO, and Nitrate. The pollutant originating from oil palm plantations is the source of the potential pollutant load that enters the Kapuas river, Mukok District, Sanggau Regency. Overall, the Kapuas River in Mukok District, District is classified as lightly polluted, with pollution index values ranging from 2,082 to 3,231. The capacity of the pollutant load of the BOD and COD parameters exceeds the capacity, so it can no longer accommodate the load polluter. Meanwhile, the Kapuas River TSS parameter in Mukok District, Sanggau Regency can still handle a pollution load of 6.733.352,358 kg/day.

scholarly journals Determination of load capacity of BOD pollutant in Cisadane River with Qual2kw model & its effect on DO parameters

2021 ◽  
Vol 894 (1) ◽  
pp. 012014
Author(s):  
I Rahmandani ◽  
D Hendrawan ◽  
W Astono
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Load Capacity ◽  
Good Condition ◽  
Quality Standard ◽  
Quality Analysis ◽  
Water Quality Analysis ◽  
Pollutant Load ◽  
Agriculture Industry ◽  
Pollutant Sources

Abstract The research to determine the carrying capacity of pollutant loads in the middle to downstream Cisadane River segment started from Jl. Teuku Umar, Tangerang and ends at Muara Tanjung Burung, Tangerang Regency with a research time starting from March – June 2021. Increased land-use change due to human and industrial activities so that population growth and limited residential land make watersheds a target for land conversion. The purpose of this study is to identify sources of pollutants that have the potential to contaminate the Cisadane River in the middle to downstream segments, analyze water quality and pollutant load capacity, the Cisadane River in the middle to downstream segments along 34 km. The method used for identification of pollutant sources is carried out by conducting field surveys, water quality analysis is carried out by SNI and compared with quality standards according to Peraturan Pemerintah No. 22 of 2021, as well as analysis of the Pollutant Load Capacity (PLC) BOD and DO using the QUAL2Kw model. The results of identifying potential pollutant sources in the middle to a downstream segment of the Cisadane River are dominated by settlements, agriculture, industry, and other domestic activities, namely restaurants and stalls. The results of water quality analysis for BOD parameters ranged from 2.51 mg/L - 5.1 mg/L, and DO range from 5.4 mg/L – 7,2 mg/L. BOD parameters from all points 1-2 meet the quality standard class 2 (3 mg/L) & points 4-6 do not meet the quality standard. The DO parameter is still in good condition because the more significant the DO value, the waters are in good condition. The high levels of BOD in the Cisadane River are influenced by domestic waste that enters the river, and the land is dominated by built-up spaces as settlements, schools, hotels and malls. Land use around the river is very influential on the load of pollutants that enter the river. The lowest DTBP of the Cisadane River for BOD is 22497,9 kg/day, and the highest is 33201,6 kg/day. The decrease in the concentration of BOD load must be lowered in the Cisadane River by 29% - 42%.

scholarly journals Identifikasi Kualitas Air dan Beban Pencemaran Sungai Bedadung di Intake Instalasi Pengolahan Air PDAM Kabupaten Jember

2019 ◽  
Vol 18 (2) ◽  
pp. 135
Author(s):  
Hendra Andiananta Pradana ◽  
Sri Wahyuningsih ◽  
Elida Novita ◽  
Aisyah Humayro ◽  
Bambang Herry Purnomo
Keyword(s):  
Water Quality ◽  
Water Treatment ◽  
Government Regulation ◽  
Water Quality Monitoring ◽  
Quality Standard ◽  
T Test ◽  
Anthropogenic Activity ◽  
Pollution Load ◽  
Grab Sampling ◽  
Water Treatment Plants

ABSTRAKLatar belakang: Salah satu sumber air permukaan yang memiliki peran vital bagi ekosistem perairan dan makhluk hidup adalah sungai. Sungai Bedadung merupakan salah satu sungai besar yang melewati wilayah Perkotaan Kabupaten Jember. Air dari sungai tersebut dimanafaatkan sebagai pemasok air baku untuk PDAM Kabupaten Jember. Akan tetapi akibat tekanan aktivitas antropogenik menurunkan kualitas air sungai tersebut. Pemantauan kualitas air diperlukan sebagai salah satu pertimbangan pengendalian pencemaran pada air sungai tersebut. Tujuan penelitian ini mengidentifikasi kondisi kualitas air dan beban pencemaran di intake intalasi pengolahan air (IPA) PDAM Kabupaten Jember.Metode: Pengambilan contoh air secara grab sampling dilakukan di intake IPA Tegal Gede dan IPA Tegal Besar dengan beberapa parameter kualitas air yang diamati yaitu suhu, kekeruhan, TDS, pH, DO, BOD, COD, yang dibandingkan dengan baku mutu Peraturan Pemerintah Republik Indonesia Nomor 82 tahun 2001 serta debit air yang digunakan untuk menghitung beban pencemaran serta dilanjutkan uji t untuk mengetahui perbandingan kondisi beban pencemaran.Hasil: Hasil penelitian menujukkan bahwa kualitas air sungai di intake IPA Tegal Gede dan IPA Tegal Besar secara berurutan tergolong kelas I dan III. Nilai COD di intake IPA Tegal Besar tergolong kelas III. Nilai beban pencemaran menujukkan perbedaan yang signifikan pada kedua intake IPA. Beban pencamaran di IPA Tegal Gede dan Tegal Besar dengan nilai rata-rata secara berurutan yaitu 24,96 kg/hari dan 74,03 kg/hari.Simpulan: Kualitas air Sungai Bedadung berdasarkan parameter fisika dan kimia di intake IPA Tegal Gede di IPA Tegal Besar secara berurutan tergolong kelas I dan III serta kondisi beban pencemaranya beragam.ABSTRACTBackground: River as one of surface water resources has a vital role for ecosystems and organism. Jember Regency Municipal Waterworks utilized the river as water raw resources. However, the pressure of anthropogenic activity decreases the river's water quality. Water quality monitoring is needed as a consideration for pollution controlling in the river. The focus research identified the condition of water quality and pollution load in the water treatment plants (WTP) intake of Jember Regency Municipal Waterworkers.Method: The water sampling by grab sampling was carried out at intake of Tegal Gede and Tegal Besar WTP with several observed pysicochemical parameters i.e temperature, turbidity, TDS, pH, DO, BOD, COD compered with the quality standard of Government Regulation No. 82 of 2001 and stream flow for pollution load measurement and continued by t-test to compire the pollution load conditions.Result: The results denote that the water quality in Tegal Gede and Tegal Besar WTP intakes were classified into first (I) and third (III) class. COD caused water quality decreased in intake of Tegal Besar WTP. The t-test of the pollution load represented a significantly difference at the both water treatment plants locations. Pollution load at Tegal Gede and Tegal Besar WTP showed the average values of 24.96 kg/day and 74.03 kg/day. Conclusion: The water quality refer to physicochemical parameter in intake of Tegal Gede and Tegal Besar were categorized WTP into first (I) and third (III) class, furthermore the condition of the pollution load varies.

scholarly journals Effect of Silvofishery on Ponds Nutrient Levels (Pengaruh Silvofishery Terhadap Kandungan Nutrien di Tambak)

2014 ◽  
Vol 19 (2) ◽  
pp. 81 ◽  
Author(s):  
Anna Ida Sunaryo Purwiyatno ◽  
Fitri Agustriani
Keyword(s):  
Water Quality ◽  
National Parks ◽  
National Park ◽  
Sampling Method ◽  
Phosphorus Content ◽  
Nutrient Content ◽  
Pond Water ◽  
Quality Parameters ◽  
Mangrove Forests ◽  
Purposive Sampling

Taman Nasional Sembilang merupakan salah satu taman nasional yang terletak di Sumatera Selatan dan menjadi kawasan mangrove terbesar di barat Indonesia. Sebagian besar wilayah mangrovenya telah mengalami alih fungsi menjadi tambak pasang surut. Hal ini menyebabkan timbulnya kekhawatiran kerusakan mangrove di taman nasional. Salah satu upaya untuk mempertahankan wilayah mangrove adalah dengan melakukan sistem silvofishery, yaitu penanaman mangrove dan budidaya bandeng dilakukan secara bersamaan di tambak. Penelitian ini bertujuan untuk menganalisis kualitas air dan kondisi nutrien di tambak di daerah restorasi silvofishery di Taman Nasional Sembilang. Penelitian dilakukan dengan metode purposive sampling di tambak silvofishery, tambak non-silvofishery, dan badan air sungai di seluruh wilayah taman nasional. Pengukuran dilakukan terhadap parameter kualitas air dan kandungan nutrien khususnya nitrat dan fosfat. Hasil penelitian menunjukkan bahwa kehadiran tanaman mangrove di daerah tambak mampu memperbaiki kandungan oksigen dan pH air tambak. Mangrove juga menunjukkan kemampuan dalam mengikat nitrat yang secara tidak langsung akan mencegah air tambak dari polusi. Namun, kandungan fosfat tinggi menunjukkan bahwa tanaman mangrove muda di wilayah restorasi belum mampu mengikat nutrien ini secara signifikan. Hasil penelitian ini menunjukkan bahwa hutan mangrove sangat bermanfaat bagi kegiatan budidaya tambak karena kemampuannya dalam menyerap polutan nutrient. Kata kunci: silvofishery; kolam; nitrat; fosfat; Taman Nasional Sembilang Sembilang National Park is one of the national parks which is located in South Sumatera and became the largest mangrove area in western Indonesia. Most of the mangroves area in this national park has been experiencing conversion to be tidal ponds. This has resulted in concerns on mangrove forest destruction in the park. One of the efforts to maintain mangroves area is by applying silvofishery system, which is mangrove planting and cultivation of milkfish in ponds performed simultaneously. This study aims to investigate the water quality and nutrient condition in the ponds in the area of silvofishery restoration at Sembilang National Park. The study was conducted by purposive sampling method in the silvofishery ponds, non-silvofishery ponds, and river water bodies throughout the park. Measurements conducted on water quality parameters and nutrient content, especially nitrate and phosphate. The results showed that the presence of mangrove in the ponds area is able to improve the oxygen content and pH of pond water. Mangroves also demonstrated the ability to bind nitrates which indirectly will prevent the pond water from pollution. However, the high phosphorus content showed that young mangrove plants in the restoration area have not been able to significantly bind the of this nutrient. The results of this study showed that mangrove forests are very beneficial for aquaculture activities because of its ability to absorb nutrient pollutants. Keywords: silvofishery; ponds; nitrate; phosphate; Sembilang National Park

scholarly journals KAJIAN DAYA TAMPUNG BEBAN PENCEMARAN SUNGAI CIBEUREUM DAS CITARUM DI SEKTOR PERTANIAN

2019 ◽  
Vol 7 (2) ◽  
pp. 072
Author(s):  
Ajeng Alya Hidrijanti ◽  
Iwan Juwana ◽  
Yenita Sandra Sari
Keyword(s):  
Spatial Planning ◽  
Agricultural Sector ◽  
Load Capacity ◽  
Pollution Load ◽  
Total N ◽  
Polluted River ◽  
Pollutant Load ◽  
Agriculture Sector ◽  
Capacity Calculation ◽  
Total P

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

scholarly journals     Study  of ecology and interrelationship of parameters in two Ecologically Different  Beels in Gangetic plain of West Bengal, India   

2021 ◽  
Author(s):  
Golam Ziauddin
Keyword(s):  
Water Quality ◽  
West Bengal ◽  
Quality Parameters ◽  
Pollution Load ◽  
Chemical Parameters ◽  
Dominant Group ◽  
Gangetic Plain ◽  
Closed Type ◽  
Physico Chemical ◽  
Different Seasons

Physical, chemical, and biological parameters of the Kole (Open type) and Suguna (Closed type) wetlands have been investigated from January 2011 to December 2013. These lakes are locally called as Baur.The work has been carried out for one and half year period from nov 2011- May2013 in different seasons viz. monsoon, post monsoon and premonsoon respectively in order to assess water quality parameters and diversity of biotic communities. The present article attempts to investigate the possible interrelationship among the physicochemical parameters and biotic communities of both the beels. During the investigation, zooplankton diversity was observed high in the wetland. Rotifers were the most dominant group followed by Cladocera, Copepoda, Protozoa and Ostracoda during the investigation. There is a high density of zooplankton in monsoon than compare to other seasons indicate good water quality and less pollution load in both beels. These investigations will be the basic guidelines for the researcher in the field of ecology of beels. The comparison of the ecological parameters of these two lakes is attempted in the present investigation. The study aim to investigate the diversity of biotic communities in relation to physico-chemical parameters of surface water in gangetic plain. Physico-chemical parameters of both the beels revealed well marked fluctuations with maxima and minima values of each parameter during specific months and analysis of biotic communities revealed seasonal variations with an increase during summer and a fall during winter and monsoon seasons.

scholarly journals Keterkaitan antara Kelimpahan Zooplankton dan Parameter Lingkungan di Perairan Pantai Morosari, Kabupaten Demak

2020 ◽  
Vol 9 (2) ◽  
pp. 157-165
Author(s):  
Titik Mariyati ◽  
Hadi Endrawati ◽  
Endang Supriyantini
Keyword(s):  
Water Quality ◽  
Sampling Method ◽  
Diversity Index ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Marine Resources ◽  
Water Parameters ◽  
Purposive Sampling ◽  
Relationship Analysis ◽  
Close Relationship

Zooplankton berperan sebagai konsumen tingkat pertama, yaitu memindahkan energi dari produsen ke konsumen tingkat dua. Zooplankton dapat digunakan sebagai bahan kajian untuk mengetahui kualitas dan kesuburan suatu perairan yang sangat diperlukan untuk mendukung pemanfaatan sumberdaya pesisir dan laut. Perairan Morosari mengalami degradasi akibat rob dan berkurangnya tanaman mangrove Penelitian ini bertujuan untuk mengetahui hubungan parameter kualitas air dengan kelimpahan zooplankton di Perairan Pantai Morosari, Demak. Penelitian menggunakan metode survei dan penentuan lokasi dipilih dengan menggunakan metode purposive sampling, analisis data meliputi kelimpahan, indeks keanekaragaman, keseragaman, dominasi dan analisis hubungan. Hasil penelitian menunjukkan bahwa nilai korelasi parameter kualitas air yaitu 0,799 (DO), 0,928 (suhu), 0,758 (salinitas), -0,019 (pH), -0,318 (arus). Berdasarkan hasil pengamatan parameter kualitas air terutama DO, suhu, dan salinitas mempunyai kaitan yang erat terhadap kelimpahan zooplankton di perairan Pantai Morosari. Zooplankton acts as the first level consumer, i.e. transferring energy from producers to second level consumers, zooplankton can be used as study material to find out the quality and fertility of water that is needed to support the use of coastal and marine resources. This study aims to determine the abundance of zooplankton, the types of zooplankton and the relation of water quality parameters with the abundance of zooplankton in Morosari Coastal Water, Demak. Research using methods of surveying and determining the location was chosen using the purposive sampling method, data analysis includes abundance, diversity index, uniformity, dominance, and relationship analysis. The results showed that correlation value between water parameters and abundance of zooplankton is 0,799 (DO), 0,928 (temperature), 0,758 (salinity), -0,019 (pH), -0,138 (current). Based on the results of the water quality parameters, especially DO, temperature, and salinity have a close relationship to the abundance of zooplankton in the waters of Morosari Beach.

scholarly journals ANALISIS BEBAN PENCEMARAN DAN INDEKS KUALITAS AIR SUNGAI SILANDAK DAN SUNGAI SIANGKER, SEMARANG

2016 ◽  
Vol 5 (3) ◽  
pp. 127-134
Author(s):  
Tyas Lufiana ◽  
Haeruddin Haeruddin ◽  
Churun Ain
Keyword(s):  
Water Quality ◽  
Water Samples ◽  
Water Quality Index ◽  
Quality Index ◽  
Sampling Method ◽  
Drainage System ◽  
Pollution Load ◽  
Domestic Waste ◽  
Sampling Points

ABSTRAKSungai Silandak dan Singker merupakan sungai penting dalam sistem drainase Semarang Barat.Sungai tersebut telah dialiri limbah industri dan limbah domestik yang berasal dari pemukiman warga sekitar. Adanya masukan limbah industri dan domestik akan berpengaruh terhadap kualitas air sungai seperti peningkatan unsur hara yang dapat menyebabkan eutrofikasi. Tujuan dari penelitian ini adalah mengetahui beban pencemaran (TSS, Nitrat, Fosfat) yang akan bermuara ke Teluk Semarang serta mengkaji status pencemaran berdasarkan metode Indeks Kualitas Air pada Sungai Silandak dan Sungai Siangker. Materi yang digunakan dalam penelitian ini adalah contoh air yang diambil pada bagian hulu, tengah dan hilir.Metode penelitian menggunakan metode survei, teknik penentuan lokasi sampling bersifat purposive pada 6 titik lokasi sempling.Contoh air diambil menggunakan metode komposit sebanyak 500 ml pada pagi dan sore hari dengan interval waktu 1 minggu. Hasil yang diperoleh berdasarkan analisis beban pencemaran yang berasal dari Sungai Silandak yaitu TSS 838,31 mg/detik, nitrat 5,44 mg/detik dan fosfat 5,08 mg/detik dan Sungai Siangker TSS 417,76 mg/detik, nitrat 4,18 mg/detik dan fosfat 3,42 mg/detik. Kualitas air Sungai Silandak bagian hulu, tegah dan hilir secara berturut-turut termasuk dalam kelas tercemar berat, tercemar sedang dan tercemar sangat berat. Sedangkan kualitas air Sungai Siangker bagian hulu, tengah dan hilir secara berturut-turut termasuk dalam kelas tercemar berat, tercemar berat dan tercemar sangat berat. Kata kunci: Beban Pencemaran, Indeks Kualitas Air, Sungai Silandak, Sungai Siangker ABSTRACTSilandak and Siangker were the important rivers in drainage system on West Semarang. The rivers drained industrial and the domestic waste from around the residential. The industrial and domestic wastes influenced the quality of the waters as the improvement of nutriens that made eutrophication. The purpose of this study was to know the pollution load (TSS, nitrate, phosphate) that flew to bay of Semarang and to review status of pollution from Silandak and Siangker rivers based on the Water Quality Index. Samples of water from Silandak and Siangker rives were taken from the upstream, midstream and downstream. The method used in this study a purposive sampling method to determine on 6 sampling points. Water samples were taken 500 ml by composite in the morning and afternoon in a week. The ammount of pollution load from Silandak river was TSS 838.31 mg/second, nitrate 5.44 mg/second and phosphate 5.08 mg/second and the ammount from Siangker river was TSS 417.76 mg/second, nitrate 4.18 mg/second and phosphate 3.42 mg/second. The water quality of Silandak river from the upstream, midstream and downstream in a row classified as heavily polluted, moderately polluted and very heavily polluted class while Siangker river from the upstream, midstresm and downstream rin a row classified heavily polluted, heavily polluted and very heavily polluted class. Key word:Pollution Load, Water Quality Index, Silandak River, Siangker River

scholarly journals EVALUASI KONDISI KUALITAS AIR BERDASARKAN DAMPAK BEBAN PENCEMARAN TERHADAP SEBARAN OKSIGEN TERLARUT DI SUNGAI GUNUNG PASANG KABUPATEN JEMBER

2021 ◽  
Vol 15 (1) ◽  
pp. 90
Author(s):  
Elida Novita ◽  
Bawon Rani Yudhika Anwar ◽  
Hendra Andiananta Pradana
Keyword(s):  
Water Quality ◽  
Load Capacity ◽  
Pollution Prevention ◽  
Water Quality Monitoring ◽  
River Pollution ◽  
Oxygen Distribution ◽  
Raw Water ◽  
Pollution Load ◽  
Community Activities ◽  
River Quality

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.

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