scholarly journals PENGELOLAAN AIR DALAM MENUNJANG KEGIATAN PENCUCIAN PADA PROSES PENAMBANGAN BAUKSIT

2020 ◽  
Vol 1 (1) ◽  
pp. 739-750
Author(s):  
Kusmanto Kusmanto ◽  
Ahmad Fauzi Fauzi ◽  
Gembong S Wibowo ◽  
Bayu Aji
Keyword(s):  
Water Management ◽  
Total Suspended Solid ◽  
Quality Standards ◽  
Suspended Solid ◽  
Mining Activities ◽  
Bauxite Mining ◽  
Jar Test ◽  
Run Off ◽  
Washing Process ◽  
Mine Openings

ABSTRAK Dalam melaksanakan kegiatan ekspor bauksit, sesuai Permen ESDM nomor 25 tahun 2018, perusahaan tambang diwajibkan untuk melakukan peningkatan kadar bauksit yang akan dijual melalui proses pencucian. Untuk mendukung hal tersebut, dibangun washing plant, sebagai sarana proses pencucian, dan sedimen pond, sebagai sarana sumber air serta pengelolaan limbah. Secara umum, proses pengelolaan air berawal dari run off pada bukaan tambang, yang dikelola dengan membuat kolam pengendapan di area tambang. kemudian untuk mendukung proses pencucian, dibangun sedimen pond sebagai sarana tempat penampungan limbah hasil pencucian dan pengelolaan air limbah sehingga dapat digunakan kembali untuk proses pencucian bauksit di washing plant. Alur proses pencucian berawal dari air pada kolam dipompakan ke washing plant, limbah hasil pencucian dialirkan ke kolam sedimen, kemudian dilakukan proses daur ulang melalui sirkulasi tertutup dengan dialirkannya kembali air tersebut ke kolam pompa untuk digunakan pada proses pencucian. Pada musim hujan, apabila terdapat penambahan air dari run off, sebagian air dialirkan ke badan air atau lingkungan untuk menjaga kapasitas tampung dari kolam sedimen. Dikarenakan adanya aliran air ke lingkungan, maka Tambang Bauksit Tayan wajib memenuhi persyaratan pada Peraturan Menteri Lingkungan Hidup nomor 34 tahun 2009 tentang Baku Mutu Limbah Air Kegiatan Pertambangan Bauksit. Berdasarkan peraturan tersebut, Tambang Bauksit Tayan wajib memenuhi kadar baku mutu pH di rentang 6-9 dan maksimum kadar Total Suspended Solid (TSS) 200 mg/l.  Maka dari itu, sebelum dialirkan ke kolam pompa, dilakukan penambahan flokulan untuk menjaga kadar TSS air tidak melebihi baku mutu sehingga diperbolehkan untuk dialirkan ke lingkungan dan mengondisikan air tetap jernih untuk menunjang proses pencucian. Untuk mengetahui flokulan dengan kinerja paling optimal, dilakukan jar test dengan beberapa jenis flokulan untuk mengetahui perbandingan biaya terhadap efektivitas proses yang dihasilkan. Dari percobaan yang dilakukan, seluruh flokulan efektif dan diperoleh efisiensi proses tertinggi dari flokulan sebesar 99% untuk konsentrasi flokulan uji 5 ppm. Kemudian flokulan tersebut digunakan sebagai bahan penjernih air pada water treatment plant untuk mengelola air limbah pencucian bauksit agar sesuai dengan standar parameter yang tertera pada regulasi yang ada. Dengan dilaksanakannya proses pengelolaan run off pada bukaan tambang, pengelolaan sedimen pond, dan pemenuhan aspek kepatuhan regulasi, kegiatan penambangan bauksit, khususnya pada tahapan pencucian di washing plant dapat dilaksanakan secara optimal sehingga dapat mendukung proses produksi untuk mencapai target yang telah ditetapkan. Kata Kunci : Run Off, Pencucian Bauksit, Sedimen Pond, Total Suspended Solid, Flokulan  ABSTRACT In carrying out bauxite export activities, according to Minister of Energy and Mineral Resources Regulation No. 25  2018, mining companies are required to increase the level of bauxite which will be sold through the washing process. To support this, a washing plant was built, as a means of the washing process, and a sediment pond, as an air source and waste management. In general, the process of water management starts from runoff at mine openings, which is managed by creating a settling pond in the mine area. then to support the washing process, build a sediment pond as a waste disposal place for washing and waste water management can be used again for the process of washing bauxite in the washing plant. The flow of the washing process starts from the water in the pond being pumped to the washing plant, the washing wastes are channeled into the sediment pond, then the recycling process is carried out through closed circulation by being channeled back into the pump pond for use in the washing process. In the rainy season, it needs air assistance from runoff, most of it is channeled to the air bodies or the environment for the reserve capacity of the sediment ponds. Due to the flow of water into the environment, the Tayan Bauxite Mine is required to meet the requirements of the Minister of Environment Regulation No. 34/2009 concerning Quality Standards for Wastewater in Bauxite Mining Activities. Based on these regulations, the Tayan Bauxite Mine is required to meet pH quality standards in the range of 6-9 and a maximum level of Total Suspended Solid (TSS) of 200 mg / l. Therefore, before flowing into the pump pond, do flocculant to get TSS levels of air not exceeding the quality standard so that it is diverted to the environment and condition the air to remain clear to support the washing process. To find out the flocculant with the most optimal performance, do a jar test with several types of flocculant to find out the costs for the resulting process. From the experiments, all the effective flocculants and the highest process efficiency obtained from flocculants was 99% for the 5 ppm flocculant concentration test. Then this flocculant is used as an air purifier in water treatment plants to manage bauxite washing wastewater to comply with the standard parameters stated in the existing arrangements. By carrying out runoff management processes at mine openings, pond sediment management, and compliance with regulatory aspects, bauxite mining activities, particularly at the washing stage at the washing plant can be carried out optimally, can support the production process to achieve the targets. Keywords: Run Off, Bauxite Washing, Sediment Pond, Total Suspended Solid, Flocculant

Monitoring and modelling mining impacts on water quality in Chindwin River Basin, Myanmar

2020 ◽  
Author(s):  
Thanapon Piman ◽  
Chayanis Krittasudthacheew ◽  
Shakthi K. Gunawardanaa ◽  
Sangam Shresthaa
Keyword(s):  
Water Quality ◽  
Heavy Metal ◽  
Drinking Water ◽  
Water Treatment ◽  
River Basin ◽  
Total Suspended Solid ◽  
Water Quality Monitoring ◽  
Suspended Solid ◽  
Quality Monitoring ◽  
Mining Activities

<p>The Chindwin River, a major tributary of the Ayeyarwady River in Myanmar, is approximately 850 km long with a watershed area of 115,300 km<sup>2</sup>. The Chindwin River is essential for local livelihoods, drinking water, ecosystems, navigation, agriculture, and industries such as logging and mining. Over the past two decades, Myanmar’s rapid economic development has resulted in drastic changes to socio-economic and ecological conditions in the basin. Water users in the basin reported that there is a rapid extension of gold and jade mining and they observed a noticeable decline in water quality along with increased sedimentation and turbidity. So far, however, Myanmar has not undertaken a comprehensive scientific study in the Chindwin River Basin to assess water quality and sources of water pollution and to effectively address issues of river basin degradation and concerns for public health and safety. This study aims to assess the status of water quality in the Chindwin River and the potential impact of mining activities on the water quality and loading through monitoring program and modeling approach. 17 locations in the upper, middle and lower parts of the Chindwin River Basin were selected for water quality monitoring. These sites are located near Homalin, Kalewa, Kani and Monywa townships where human activities and interventions could affect water quality. Water quality sampling and testing in the Chindwin River was conducted two times per year: in the dry season (May-June) and in the wet season (September-October) during 2015-2017. We monitored 21 parameters including heavy metals such as Lead (Pb), Mercury (Hg), Copper (Cu) and Iron (Fe). The observed values of Mercury in Uru River in the upper Chindwin River Basin which located nearby gold mining sites shown higher than the WHO drinking standard. This area also has high values of turbidity and Total Suspended Solid. The SHETRAN hydrological model, PHREEQC geochemical model and LOADEST model were used to quantify the heavy metal loads in the Uru River. Results from scenario analysis indicate an increase in Arsenic and Mercury load under increment of concentration due to expansions in mining areas. In both baseline and future climate conditions, the Uru downstream area shows the highest load effluent in both Arsenic and Mercury. These heavy metal loads will intensify the declining water quality condition in Chindwin River and can impact negatively on human health who use water for drinking. Therefore, we recommend that water quality monitoring should continue to provide scientific-evidence for decision-makers to manage water quality and mining activities properly.  Water treatment systems for drinking water are required to remove turbidity, Total Suspended Solid, and Mercury from raw water sources. Raising awareness of relevant stakeholders (local people, farmers, private sectors, etc.) is necessary as many people living in the Chindwin River Basin are using water directly from the river and other waterways without proper water treatment.</p>

scholarly journals EVALUASI KINERJA INSTALASI PENGOLAHAN AIR LIMBAH RSD MANGUSADA KABUPATEN BADUNG

2021 ◽  
Vol 25 (1) ◽  
pp. 30
Author(s):  
Kadek Diana Harmayani
Keyword(s):  
Wastewater Treatment ◽  
Liquid Waste ◽  
Oxygen Demand ◽  
Secondary Data ◽  
Total Suspended Solid ◽  
Quality Standards ◽  
Total Coliform ◽  
Suspended Solid ◽  
Ammonia Content ◽  
Reference Quality

The Mangusada Regional General Hospital (RSD) as a provider of health facilities certainly produces liquid waste in every operational activity. Wastewater in the Wastewater Treatment Installation (WWTI) RSD Mangusada contains Biological Oxygen Demand (BOD5), Chemical Oxygen Demand (COD), Total Suspended Solid (TSS), ammonia, total coliform, Total Dissolved Solid (TDS), detergent, oil and fat. This study aims to evaluate the performance of the WWTI as well as to determine the content in the wastewater after being treated by the IPAL RSD Mangusada according to the reference quality standards of the Governor of Bali Regulation No.16/2016 and Regulation of the Minister of Environment and Forestry of the Republic of Indonesia Number: P.68/Menlhk/Setjen/Kum.1/8/2016. The wastewater treatment system at RSD Mangusada uses a biological system. The data used in the analysis are secondary data, namely the Bed Occupation Rate (BOR) data in June 2020, the total number of beds, the average discharge of outlets in June 2020 and parameters of the quality and quantity of wastewater in the inlet and outlet of WWTI from January 2020 to July 2020. Based on the results of testing the quality and quantity of wastewater at the WWTI of RSD Mangusada outlet, the content of waste water in the outlet of WWTI is in accordance with the regulatory standards for the reference quality standards. In addition, the effectiveness of the efficiency of the WWTI at RSD Mangusada succeeded in reducing the ammonia content of 92.35%, BOD5 64.03%, COD 63.97%, TSS 67.03%, oil and fat 64.64%, total coliform 76.84%. , and detergent at 76.25%. But the efficiency of the WWTI of RSD Mangusada was not good enough in reducing the TDS content of -3.92%.  

scholarly journals PENGARUH WAKTU FERMENTASI TERHADAP PERSENTASE PENYISIHAN PADATAN TERSUSPENSI TOTAL (TSS) CAMPURAN LIMBAH CAIR INDUSTRI TAPIOKA DENGAN AIR

2014 ◽  
Vol 3 (1) ◽  
pp. 11-14
Author(s):  
Wan Rizki Ansari ◽  
Umayi Belladiana ◽  
Setiaty Pandia
Keyword(s):  
Raw Materials ◽  
Liquid Waste ◽  
Total Suspended Solid ◽  
Suspended Solid ◽  
Anaerobic Digester ◽  
Raw Material ◽  
System Research ◽  
Fermentation Time ◽  
Washing Process ◽  
Optimal Value

The waste water of tapioca is the waste produced from the washing process raw materials, screening cassava porridge (extraction) and starch sediment containing organic compounds which are still important, especially starch and other compounds that can be used as raw material for the manufacture of bio gas. This study aimed to determine the effect of  fermentation time on the elimination percentage of Total Suspended Solid (TSS) using batch anaerobic digester system. Research was carried out by mixing the liquid waste of tapioca industry with water in the ratio 100:0; 85:15; 65:35; 50:50;35:65, and 15:85 (v/v) with starterin an anaerobic digester system batch in which neutral pH of the mixture was set. Parameter observed was the content of Total Suspended Solid. Percentage of elimination of Total Suspended Solid was reached at the rasio of liquid waste to water 100:0 (v/v) with the optimal value of 89.851% on the 21th day.

scholarly journals High Cod and Turbidity Removal in The Treatment of Polluted Pond Water Using Low Dosage of Pineapple Leaf Coagulant: A Preliminary Study

2021 ◽  
Vol 11 (4) ◽  
pp. 42-49
Author(s):  
Rafidah Husen ◽  
Juferi Idris ◽  
Nur Diana Wakimin ◽  
Jimmy Mijim ◽  
Lovelyna Eva Sunta ak Michael Luncha ◽  
...  
Keyword(s):  
Oxygen Demand ◽  
Total Suspended Solid ◽  
Pond Water ◽  
Suspended Solid ◽  
Turbidity Removal ◽  
Body Contact ◽  
Jar Test ◽  
Class Iib ◽  
High Chemical Oxygen Demand ◽  
Low Dosage

Coagulation process using low dosage of plant-based coagulant to remove high chemical oxygen demand (COD) and turbidity is important for water treatment. This study presents the treatment of pond water using plant-based pineapple leaf coagulant to achieve high COD and turbidity removal. The coagulation was performed using a jar test experiment of pond water at different pH followed by different dosages of pineapple leaf coagulant. It was found that the highest COD and turbidity removal ranged between 94.1 – 94.6 % and 88.3 – 88.4 % at pH 8 respectively, using low dosage (50 mg L-1) of pineapple leaf coagulant. The final COD and turbidity values ranged between 7.3 – 8.0 mg L-1 and 17.7 – 17.8 formazin turbidity unit (FTU) respectively, which are lower compared with results from other studies that used high dosage coagulants. Moreover, the final pH, COD, turbidity, dissolved oxygen (DO), and total suspended solid (TSS) values of the treated pond water were below the standard limits set by the National Water Quality Standards for Malaysia (NWQSM) class IIB, which represents water bodies suitable for recreational use with body contact (DOE, 2016). Therefore, it is expected that the newly-formulated waste utilisation of pineapple leaf coagulant can reduce the usage of chemical coagulants and can further be used for different types of water.

scholarly journals Efisiensi Penurunan Kadar COD, TSS, dan TDS pada Air Limbah Industri Pangan menggunakan Koagulan Poly Alumunium Chloride dengan metode Jar Test

WARTA AKAB ◽  
2021 ◽  
Vol 45 (2) ◽  
Author(s):  
Ahmad Zakaria ◽  
Sopian Sauri ◽  
Dian Mira Fadela ◽  
Puspita Sri Ayu Wardhani
Keyword(s):  
Chemical Oxygen Demand ◽  
Oxygen Demand ◽  
Total Suspended Solid ◽  
Suspended Solid ◽  
Aluminium Chloride ◽  
Jar Test ◽  
Total Dissolved Solid

Industri pangan menghasilkan air limbah berbahan organik dan padatan tersuspensi maupun terlarut yang tinggi. Salah satu proses pengolahan air limbah yaitu dengan proses koagulasi-flokulasi yang bertujuan untuk menghilangkan padatan tersuspensi dan zat organik yang dapat menyebabkan kekeruhan serta bau dengan penambahan koagulan. Penambahan koagulan pada instalasi pengolahan air limbah (IPAL) tidak dilakukan secara kuantitatif, sehingga perlu dilakukan percobaan dengan metode jar test. Tujuan percobaan untuk mengetahui pH dan dosis optimum serta efisiensi koagulan poly aluminium chloride (PAC) untuk menurunkan kadar chemical oxygen demand (COD), total suspended solid (TSS), dan total dissolved solid (TDS). Hasil uji parameter COD, TSS, dan TDS dibandingkan dengan Surat Keputusan Gubernur Tingkat 1 Jawa Barat (SK Gub TK 1 Jabar) No. 6 Tahun 1999 tentang Baku Mutu Limbah Cair Bagi Kegiatan Industri di Jawa Barat. Berdasarkan hasil percobaan diperoleh kondisi optimum koagulan PAC pada pH air limbah 6–7 dengan dosis koagulan optimum pada (80–90) mg/L. Hasil pengujian parameter TS, TDS, TSS, kekeruhan dan COD berturut-turut memberikan nilai efisiensi sebesar (52,6-57,8)%, (53,9-55,5)%, (52,4-58,1)%, (97,8-99,1)%, dan (71,6–77,1)%. Percobaan yang dilakukan membuktikan bahwa koagulan PAC mampu menurunkan kadar pada parameter uji dengan nilai efisiensi yang cukup besar.

scholarly journals PENGARUH AIR LINDI PADA TERHADAP pH DAN ZAT ORGANIK PADA AIR TANAH DI TEMPAT PENAMPUNGAN SEMENTARA KELURAHAN PAHANDUT KOTA PALANGKARAYA (Effect of Leachate to pH and Organic Substances of Ground Water in The Waste Transfer Station in Kelurahan Pahandut Kota Palangka Raya)

2020 ◽  
Vol 25 (2) ◽  
pp. 60
Author(s):  
Nani Apriyani ◽  
Rudy Yoga Lesmana
Keyword(s):  
Dissolved Oxygen ◽  
Groundwater Quality ◽  
Sampling Site ◽  
Total Suspended Solid ◽  
Quality Standards ◽  
Suspended Solid ◽  
Quality Parameters ◽  
Transfer Station ◽  
Waste Transfer ◽  
Leachate Water

AbstrakTumpukan sampah di Tempat Penampungan Sementara (TPS) maupun Tempat Pemrosesan Akhir (TPA) yang menghasilkan air lindi perlu dilakukan pemantauan untuk mengetahui air lindi sebelum dibuang guna mencegah terjadinya pencemaran air tanah. Penelitian ini bertujuan mengetahui pengaruh dari kualitas air lindi terhadap air tanah warga di sekitar lokasi TPS di Kelurahan Pahandut, Kota Palangka Raya. Penelitian dilakukan dengan melakukan pemeriksaan parameter air lindi, seperti Total Suspended Solid (TSS), Dissolved Oxygen (DO), kandungan minyak dan lemak. Selain itu, parameter kualitas air tanah juga diperiksa, seperti pH dan kadar zat organik pada 2 titik lokasi dengan jarak masing-masing 50 meter. Hasil penelitian menunjukkan bahwa kadar TSS air lindi di sekitar TPS melebihi baku mutu yaitu 130 ppm dan berpotensi sebagai penyebab tercemarnya air tanah di lokasi sekitar TPS tersebut. Kadar zat organik air tanah pada titik 1 dan 2 melebihi baku mutu yaitu sebesar 17 dan 15,1 ppm dari baku mutu yang diharapkan 10 ppm serta pH yang di bawah rentang pH yang diizinkan yaitu 6,5-9.AbstractPiles of domestic waste in Temporary waste transfer station (TPS) and Final Processing Station (TPA) that produce leachate need to be monitored to find out the leachate before disposal to prevent contamination of groundwater. This study aims to determine the effect of leachate water quality on groundwater of residents around the TPS location in Pahandut Village, Palangka Raya City. The study was conducted by examining the leachate quality parameters, such as Total Suspended Solid (TSS), Dissolved Oxygen (DO), oil and fat content, and also examining the groundwater quality parameters, such as pH and organic matter at two water samples from two locations of sampling site with a distance of 50 meters. The results showed that the TSS value of leachate was 130 ppm, which exceeded the permitted quality standard. It can lead groundwater pollution in area around the TPS. The organic substance levels of two site of groundwater exceeded the groundwater quality standards, 17 and 15.1 ppm respectively. The pH of two site of groundwater was 6.5-9, which was below the groundwater quality standards. 

Decolourisation of Sewage using Commercial Tannin-Based Coagulant

2021 ◽  
Vol 2 (2) ◽  
Author(s):  
Azreen Ibrahim ◽  
◽  
Junidah Lamaming ◽  
Lorita Nakolas ◽  
Vielyn Jinus ◽  
...  
Keyword(s):  
Zeta Potential ◽  
Total Suspended Solid ◽  
Suspended Solid ◽  
Test Experiment ◽  
Optimum Dosage ◽  
Jar Test ◽  
Coagulation Process ◽  
Complex Organic ◽  
Sedimentation Time

In this work, the effectiveness of removing colour and total suspended solid (TSS) from complex organic particulate artificial sewage (COPAS) via the coagulation process was studied. Organo-floc (OF), a tannin-based coagulant derived from the plant was used as a coagulant. OF was applied in a jar test experiment at the various dosages at 57 rpm for 5 min, and 30 min sedimentation time to find out the optimum dosage for colour and TSS removal. Zeta potential, pH and conductivity were also analysed. Experiment with tannin dosage of 125 ppm resulted in the highest colour and TSS removal of 94% and 79%, respectively. Organo-floc showed promising results in decolourisation and TSS removal from artificial sewage.

scholarly journals STUDI PEMANTAUAN AIR LIMBAH CAIR TAMBANG PADA PT. XXX DI MUARA TEWEH KALIMANTAN TENGAH

2018 ◽  
Vol 4 (1) ◽  
Author(s):  
Annisa Annisa
Keyword(s):  
Waste Water ◽  
Water Quality ◽  
Coal Mining ◽  
Total Suspended Solid ◽  
Suspended Solid ◽  
Quality Analysis ◽  
Water Quality Parameter ◽  
Mining Activities ◽  
The Impact ◽  
L 13

Kegiatan penambangan Batubara sebagai salah satu komoditas penambahan devisa negara. Namun dampak negatif dari kegiatan penambangan batubara adalah sebagai penghasil air limbah dengan kandungan bahan-bahan yang berbahaya, terlebih jika kegiatan penambangan tersebut dekat di hulu sungai. PT. XXX adalah sebuah perusaahan yang bergerak dibidang pertambangan yang terletak di Muara Teweh Kalimantan Tengah. Guna mengetahui dampak lingkungan yang disebabkan olehkegiatan penambangan khususnya dampak dari air limbah batubara maka PT. XXX  melakukan pemantauan lingkungan pertriwulan. Kegiatan ini bertujuan untuk  mengetahui penurunan kualitas air. Analisis data lapangan dan laboratorium atas beberapa parameter diantaranya analisis pH, Total Suspended Solid (TSS), kandungan Fe dan Mn yang merujuk pada Peraturan  Gubernur Kalimantan Selatan  No. 036 Tahun 2008  Tentang Baku Mutu Air Limbah Kegiatan Penambangan, Pengolahan/Pancucian Batubara dan Kepmen LH No. 113 Tahun 2003 untuk keluaran dari kolam pengolahan limbah cair tambang batubara. Berdasarkan Hasil analisis laboratorium  didapatkan hasil uji parameter kualitas air  yaitu nilai TSS berkisar <2 mg/l – 13 mg/l, nilai pH antara 6,89 -7,78, kandungan besi (Fe) berkisar  0,06 mg/l - 0,78 mg/l dan kandungan Mangan (Mn) berkisar < 0,0022 mg/l – 0,004 mg/l.Kata kunci: Batubara, parameter, penambangan, pH, TSS. Coal mining activities as one of the commodity additions of foreign exchange. However, the negative impact of coal mining activities is as a producer of waste water with dangerous ingredients, especially if the mining activities are near the upstream of the river. PT. XXX is a mining company located in MuaraTeweh, Central Kalimantan. In order to know the environmental impact caused by mining activities, especially the impact of coal waste water, PT. XXX conducts quarterly environmental monitoring. This activity aims to determine the decrease of water quality. Analysis of field and laboratory data on several parameters such as pH analysis, Total Suspended Solid (TSS), Fe and Mncontents referring to South Kalimantan Goverment Regulation no. 036 Year 2008 About Quality Standard of Wastewater Mining, Processing / washing Coal and LH Decree No. 113 of 2003 for the output of liquid waste pools of coal mines. Pursuant to result of laboratory analysis got result of water quality parameter test that is value of TSS about <2 mg / l - 13 mg / l, pH value between 6,89 -7,78, iron content (Fe) 0,06 mg / l - 0 , 78 mg / l and Manganese content (Mn) ranged from <0.0022 mg / l - 0.004 mg / l.Key word: coal, mining, parameter, pH, TSS.

scholarly journals Study of Batik Wastewater Treatment Using PAC (Poly Aluminum Chloride) as Coagulant and Organoclay (Montmorillonite-polydadmac) as Floccullant to Reduce Total Suspended Solid (TSS) and Total Dissolved Solid (TDS)

2017 ◽  
Vol 1 ◽  
pp. 125-130
Author(s):  
Novita Chandra Sari ◽  
Irwan Nugraha
Keyword(s):  
Wastewater Treatment ◽  
Total Suspended Solid ◽  
Suspended Solid ◽  
Test Method ◽  
Aluminium Chloride ◽  
Jar Test ◽  
Coagulation And Flocculation ◽  
Before And After ◽  
Total Dissolved Solid ◽  
Flocculation Time

Batik wastewater treatment using PAC (Poly Aluminium Chloride) as a coagulant and organoclay (montmorillonite- polyDADMAC) as flocculants was investigated in this study. The purpose of this study was to analyze the quality of batik wastewater effluent before and after coagulation-flocculation and analyze the effectiveness of organoclay as flocculants of batik wastewater. Organoclay (montmorillonite-polyDADMAC) synthesised by reacting natural bentonite with polyDADMAC 0.4%. Coagulation and flocculation used jar test method with a speed stirring at 120 rpm for 2 minutes and slow stirring at 40 rpm with a variety of types, masses of flocculants and flocculation time. At first, batik wastewater had high levels of TSS and TDS levels. TSS and TDS levels reduced after coagulation-flocculation. Effectiveness of maximum TSS reduced at 99,74% with the addition of organoclay flocculant 2.5 g/L and flocculation time for 80 minutes. Effectiveness of maximum TDS reduced at 93,57% with the addition of organoclay flocculant 2.5 g/L and 60 minutes flocculation.

scholarly journals Efektivitas Penggunaan Aluminium Sulfat Dalam Menurunkan Kadar TSS (Total Suspended Solid) Air Limbah Penambangan Batu Bara Di PT.X

Elkawnie ◽  
2017 ◽  
Vol 3 (2) ◽  
Author(s):  
Juliansyah Harahap
Keyword(s):  
Total Suspended Solid ◽  
Suspended Solid ◽  
Run Off

Penelitian ini dilaksanakan pada PT. X yang bergerak pada bidang industri pertambangan dan penjualan batubara. Tujuan dari penelitian ini adalah untuk mengetahui proses pengolahan air limbah, dosis dan efektivitas penggunaan Alumunium Sulfat untuk menurunkan kadar Total Suspended Solid (TSS) serta biaya yang harus dikeluarkan perusahaan dari penggunaan Alumunium Sulfat pada pengolahan air limbah tersebut. Metode yang digunakan dalam penelitian ini adalah metode survei, dan pendekatan yang dilakukan dalam menganalisa data-data yang didapatkan adalah dengan menggunakan metode deskriptif-kualitatif. Selain hasil pengukuran dan pengamatan dilapangan, data primer lainnya didapatkan dengan melakukan wawancara secara mendalam(indepth interview) pada responden yang dinilai dapat menjadi sumber informasi yang baik. Hasil dari penelitian ini disimpulkan bahwa sumber air limbah penambangan batu bara merupakan run-off di areal Pit B yang berasal dari mata air yang berada di sekeliling dinding Pit B (area tambang) dan air limpasan hujan yang bercampur dengan lapisan over burden (OB) pada saat dilakukan kegiatan penambangan batu bara. Pengolahan air limbah kegiatan penambangan batu bara yang ditujukan untuk mengurangi kadar TSS pada air limbah tambang, dilakukan dengan teknologi pengolahan aktif. Efektivitas penggunaan Aluminium Sulfat (tawas) untuk menurunkan kadar konsentrasi parameter TSS dengan dosis yang telah ditentukan PT. X adalah sebesar 86,74 %.

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