scholarly journals PENURUNAN KADAR BESI DAN KROMIUM LIMBAH CAIR LABORATORIUM TEKNIK LINGKUNGAN DENGAN PENGENCERAN, KOAGULASI DAN ADSOBSI

2020 ◽  
Vol 14 (1) ◽  
pp. 74
Author(s):  
Indah Nurhayati ◽  
Sela Vigiani ◽  
Dian Majid
Keyword(s):  
Waste Water ◽  
Treatment Process ◽  
Adsorption Process ◽  
Operating Time ◽  
Quality Standards ◽  
Quality Standard ◽  
Total Chromium ◽  
Wastewater Quality ◽  
Environment Regulation

The purposes of this study is to examine the effect of flowrate and operating time on decreasing Fe and Cr, assessing the quality of wastewater after being treated with dilution, neutralization, coagulation and adsorption especially for the parameters Cr, Fe and pH. The variables in this study are the flow of waste water that is 100 mL / min and 140 mL / min, operating time for 60 minutes. The adsorption process is carried out continuously with down flow. Adsorbents in the form of activated zeolite and activated carbon are arranged in stages in a PVC reactor. The results of this study are 100 ml/min discharge can reduce total Fe by 99.9% from 1,767 mg/L to 0,971 mg/L and total chromium 99.2% from 48.7 mg/L to 0,39 mg/L. 140 ml/minute discharge can reduce total Fe 99.9% from 1,767 mg/L to 0.99 mg/L and total chrome 99% from 48.7 mg/L to 0.45 mg/L. Waste water quality, especially for the parameters of Cr, Fe and pH, after the treatment process have met the quality standard in accordance with Minister of Environment Regulation No. 5 of 2014 concerning Wastewater Quality Standards.

scholarly journals Analisis Air Buangan Kantin di Kampus II Universitas Bhayangkara Jakarta Raya

2020 ◽  
Vol 2 (1) ◽  
pp. 13-24
Author(s):  
Lisa Adhani ◽  
Wahyu Kartika ◽  
Dovina Navanti
Keyword(s):  
Waste Water ◽  
Liquid Waste ◽  
Quality Standard ◽  
Absolute Deviation ◽  
Double Exponential ◽  
Wastewater Quality ◽  
Double Exponential Smoothing ◽  
Exponential Smoothing Method ◽  
Potential Pollution

Canteen is a producer of domestic liquid waste that has the potential to cause pollution. Likewise with the student canteen, it has the potential to produce waste that causes environmental pollution if it is not treated properly. The use of Montecarlo software in this study is to support quantitative analysis in predicting potential pollution from Ubhara canteen waste with Crystall ball prediction. The results of laboratory analysis in the form COD, BOD dan TSS, showed that the quality of the canteen waste water did not meet the requirements for wastewater quality standard based on Ministry of Environment Decree No. 112 of 2003. Supported by the results of CB Predictor simulations showing the potential of pollution of the Ubhara canteen waste water to the environment continues to increase significantly, also seen from the Double Exponential Smoothing Method, producing MAD (Mean Absolute Deviation) 170.82, Theil's U 0.9951, and Confidence Interval Lower 5% and Upper 99.5%.

A Study on the Treatment Process of Coalbed Methane Wastewater

2013 ◽  
Vol 671-674 ◽  
pp. 2722-2725
Author(s):  
Jian Kang Li ◽  
Dong He ◽  
Peng Kang Jin
Keyword(s):  
Coalbed Methane ◽  
Continuous Monitoring ◽  
Treatment Process ◽  
Removal Rate ◽  
Water Environment ◽  
Quality Standard ◽  
Water Index ◽  
Environment Quality ◽  
Wastewater Quality

According to the continuous monitoring and analyzing on coalbed methane produced wastewater quality, focusing on the large quantity, high SS and Fe qualities of wastewater produced from coalbed methane. Based on the constitution pollutants of wastewater, the treatment process of "pre-oxidation+coagulation+precipitation+manganese sand filter+disinfection" is proposed. laboratory static experiment has been conducted after the wastewater collected from the construction site. The result showed that with this treatment process, the removal rate of SS reached above 95%, the removal rate of COD could be higher than 55% and the removal rate of Fe was above 95%. The quality of treated water could meet the requirement of Ⅱ class water index in "Surface Water Environment Quality Standard" (GB3838-2002).

scholarly journals RANCANG BANGUN DAN UJI ALAT PROSES PENINGKATAN MINYAK CENGKEH PADA KLASTER MINYAK ATSIRI KABUPATEN BATANG

2012 ◽  
Vol 10 (2) ◽  
pp. 64 ◽  
Author(s):  
W Widayat ◽  
Bambang Cahyono ◽  
N Ngadiwiyana
Keyword(s):  
Essential Oils ◽  
Adsorption Process ◽  
Operating Time ◽  
Stirred Tank ◽  
First Year ◽  
Clove Oil ◽  
Product Analysis ◽  
Central Java ◽  
Low Levels

ABSTRAK Minyak cengkeh merupakan salah satu produk dari minyak atsiri yang dihasilkan oleh Kluster Minyak Atsiri di Kabupaten Batang. Permasalahan yang dihadapi saat ini adalah kadar eugenol yang rendah serta warna yang belum bisa memenuhi standar SII/EOA maupun SNI 06 2387 2006. Penelitian ini bertujuan untuk melakukan peningkatan kualitas minyak cengkeh /eugenol dengan proses adsorpsi. Hasil penelitian menujukkan bahwa: bahan minyak cengkeh belum memenuhi standar SNI 06 2387 2006 khususnya dari warna dan kadar eugenol total. Hal ini dikarenakan dalam proses masih digunakan peralatan dari besi. Minyak cengkeh dapat ditingkatkan kadar eugenol dan perbaikan warna menjadi lebih cerah (kuning) dengan penambahan asam sitrat 0,6-10%. Peralatan dengan pengadukan dapat digunakan dalam proses peningkatan minyak cengkeh. Daya yang terpasang sekitar 1 PK dan kapasitas setiap batch 20-30 kg dengan waktu operasi 60 menit dan temperatur 50oC. Kemampuan UKM di Klaster Minyak Atsiri Kab Batang Jawa Tengah dapat ditingkatkan dengan kegiatan pelatihan dan Expo hasil penelitian. Pada Tahun pertama, UKM telah melakukan kegiatan analisis produk dan perbaikan minyak cengkeh sehingga memenuhi standar SNI 06 2387 2006. Kata Kunci: minyak cengkeh, eugenol, adsorpsi, tangki berpengaduk, persentase Fe terikat ABSTRACT Clove oil is a product of essential oils produced by clusters of Essential Oils in Batang. The problem faced today is that low levels of eugenol and it color doen’t meet with SII / EOA and SNI 06 2387 2006 standard. The purpose in this research for improving the quality of clove oil / eugenol with adsorption process. The results showed that: clove oil doesn’t meet of SNI 06 2387 2006 especially at colors and total eugenol. This is because the process was used equipment from iron. The eugenol and color improving to yellow bright of clove oil by adding citric acid from 0.6 to 10%. Stirring equipment can be used to the process for increasing the quality of clove oil. Installing power of about 1 PK with batch of 20-30 kg capacity with 60 minutes operating time at 50oC. The capability of UKM at clusters of Essential Oil at Batang, Central Java can be improved by training and researching Expo. In the first year, UKM had engaged in product analysis and improvement of clove oil that meets with SNI 2387 06 2006.   Keywords: clove oil, eugenol, adsorption, stirred tank, the percentage of Fe bonded

scholarly journals Cyclopentane hydrate-based processes for treating heavy metal containing wastewater

2019 ◽  
Vol 118 ◽  
pp. 04039
Author(s):  
Yamei Yang ◽  
Hang Zhou ◽  
Feng Li ◽  
Changrui Shi ◽  
Shuai Wang ◽  
...  
Keyword(s):  
Waste Water ◽  
Heavy Metal ◽  
Water Treatment ◽  
Enrichment Factor ◽  
Treatment Process ◽  
Waste Water Treatment ◽  
Water Recovery ◽  
Water Treatment Process ◽  
Metal Recycling

The scarcity of water and increasing water pollution are the pressing challenge human being facing. Recovering water and valuable heavy metals is highly desired for treating heavy metal containing wastewater. We proposed a novel hydrate-based process to treat Ni2+ containing wastewater. The water recovery, Ni2+ enrichment factor, desalination efficiency were studied using this cyclopentane hydrate-based method. A water recovery of 43% can be obtained with a desalination efficiency of round 88% and an enrichment factor of 1.6. The desalination efficiency and the quality of the as-made water via the hydrate-based process can be further improved to above 99% via three-stage hydrate reaction. The proposed hydrate-based water treatment process may find wide applications in waste water treatment and heavy metal recycling.

scholarly journals Kualitas Air Tanah di Sekitar TPA Km 14 Kota Palangka Raya

2020 ◽  
Vol 1 (1) ◽  
pp. 75-82
Author(s):  
Yustani Leluno ◽  
Kembarawati ◽  
Basuki
Keyword(s):  
Water Quality ◽  
Water Distribution ◽  
Government Regulation ◽  
Quality Standards ◽  
Quality Standard ◽  
Water Quality Standards ◽  
Processing Site ◽  
Local Water

The lack of clean water distribution by local water service (PDAM) of Palangka Raya city is the major reason for people around the final processing site/landfill (Tempat Pemrosesan Akhir) at Km 14 to use groundwater for their daily life. The landfill may cause pollution over groundwater known as leachate, which commonly unnoticed by its users. This study aims at assessing the quality of groundwater in that area. The groundwater was taken at different distances from the site in three rainless-days. The physical, chemical and biology parameters of groundwater are observed in the field (in situ) and analyzed in the laboratory, refers to water quality standard of Class I, according to Government Regulation No. 82 of 2001 and Minister of Health Regulation No. 32 of 2017. Public opinion on that issue is cached through interview. The results showed that the groundwater around the landfill in three rainless-days was harmless to be consumed as drinking water, and did not exceed the water quality standards stipulated by government in term of odorless, tasteless, and colorless. Some indicators also show that the groundwater meets the specified quality standards, i.e. TDS (17-68.14 mg/L), DHL (17,15-69.39 ?s), turbidity (0.11-2.50 mg/L), iron (0.227-0.71 mg/L), manganese (<0.0123-0.02 mg/L), coliform (<1.8-280 MPN/100 ml), while Pb and H2S were not detected. From community side, there are no any health complaints arise as long as they use the water.

scholarly journals ANALISIS KANDUNGAN LIMBAH INDUSTRI TAHU DAN TEMPE RAHAYU DI KELURAHAN UNER KECAMATAN KAWANGKOAN KABUPATEN MINAHASA

2020 ◽  
Vol 16 (2) ◽  
pp. 245
Author(s):  
Febrian Sayow ◽  
Bobby Vian Jhon Polii ◽  
Wenny Tilaar ◽  
Kojoh Deanne Augustine
Keyword(s):  
Sampling Method ◽  
Liquid Waste ◽  
Quality Standards ◽  
Quality Standard ◽  
Water Sampling ◽  
Raw Water ◽  
Descriptive Research ◽  
Sampling Locations ◽  
The Government

This study aims to (1). Knowing the content and quality of Rahayu's tofu and tempe factory liquidwaste in Uner Village, Kawangkoan Sub-district, Minahasa Regency, and (2). To find out whether Rahayu's tofu and tempe factory liquid waste has exceeded the quality standard. This research was conducted for 3 months, namely in January 2020- March 2020. Sampling locations were carried out in the factory of Tahu and Tempe Rahayu Sub-district in Uner Village, Kawangkoan District, then continued with the analysis at the Manado Industrial Research and Standardization Laboratory (Baristand). This research was a descriptive research and laboratory analysis. Waste water sampling was carried out using a composite sampling method. Sampling was done in the first two places, raw water is used to make tofu and tempe in an inlet and the first was taken from the tofu factory wastewater and tempe in the sewer. Waste liquid sampling was carried out 3 times and for analysis carried out at the Baristand Laboratory to obtain data according to the parameters set in this study. The results showed that the quality of Rahayu tofu and tempe industrial liquid waste based on the analysis of BOD, COD, and TSS parameters that have been analyzed accordingly and have not passed the quality standards set by the Government. However, for the pH parameters are not appropriate and in accordance with the quality standards set by Government.*eprm*

scholarly journals Potensi Minyak Jelantah Sebagai Biodiesel dan Pengaruh Katalis Serta Waktu Reaksi Terhadap Kualitas Biodiesel Melalui Proses Transesterifikasi

2020 ◽  
Vol 5 (2) ◽  
Author(s):  
Muhammad Busyairi ◽  
Aufar Za’im Muttaqin ◽  
Ika Meicahyanti ◽  
Saryadi Saryadi
Keyword(s):  
Reaction Time ◽  
Water Content ◽  
Methyl Esters ◽  
Quality Standards ◽  
Quality Standard ◽  
Flash Point ◽  
Cooking Oil ◽  
Used Cooking Oil ◽  
Yield Parameters

This study aimed to determine the effect of reaction time and catalyst variations on the quality of biodiesel according to SNI 7182: 2015 determine the best reaction time and catalyst variations on the yield parameters, water content, viscosity, density, flash point, and methyl ester levels of biodiesel produced. Based on the research, the results show that the quality of biodiesel obtained for each parameter meets the SNI 7182: 2015 quality standards except for water content parameters that still exceed the quality standard limits. The best quality of biodiesel is shown in the variation of the reaction time of 120 minutes with KOH catalyst with a yield of 77.95%, moisture content of 0.2673%, density of 0.8669 gr/ml, the viscosity of 5.15 CST, flash point 174°C and levels of methyl esters 98.42%. Biodiesel from used cooking oil can be applied as renewable energy that is more environmentally efficient.<h1 style="margin: 0cm; margin-bottom: .0001pt; text-indent: 0cm; mso-list: none; tab-stops: 36.0pt;"><span style="mso-bidi-font-size: 11.0pt; text-transform: none; font-weight: normal; mso-bidi-font-weight: bold; mso-bidi-font-style: italic;" lang="EN-US">This study aimed to determine the effect of reaction time and catalyst variations on the quality of biodiesel according to SNI 7182: 2015 determine the best reaction time and catalyst variations on the yield parameters, water content, viscosity, density, flash point, and methyl ester levels of biodiesel produced. Based on the research, the results show that the quality of biodiesel obtained for each parameter meets the SNI 7182: 2015 quality standards except for water content parameters that still exceed the quality standard limits. The best quality of biodiesel is shown in the variation of the reaction time of 120 minutes with KOH catalyst with a yield of 77.95%, moisture content of 0.2673%, density of 0.8669 gr/ml, the viscosity of 5.15 CST, flash point 174°C and levels of methyl esters 98.42%. Biodiesel from used cooking oil can be applied as renewable energy that is more environmentally efficient.</span></h1>

scholarly journals Pemantauan Kualitas Air Sungai Digoel, Distrik Jair, Kabupaten Boven Digoel, Papua

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Rosye H.R. Tanjung ◽  
Hendra K. Maury ◽  
Suwito Suwito
Keyword(s):  
Waste Water ◽  
Water Quality ◽  
Treatment Plant ◽  
Quality Standard ◽  
Total Coliform ◽  
Waste Water Treatment Plant ◽  
Organic Chemical ◽  
Industrial Activity ◽  
The Impact

Digoel river have an important role to the human activity and environment in Boven Digoel Regency. Increasing of human and industrial activity around the watershed of Digoel River were suspecious to cause the degradation water quality in Digoel River. This research was done to monitor the impact of the industrial activity to the quality of water in outlet of waste water treatment plant(WWTP) of PT. Korindo to the water quality of Digoel River. Parameter analised are the physical, chemical, organic chemical, microbiology and metal content in water. Analysis of the water quality accordance to PP Nomor 82 Tahun 2001 about water quality managementand water pollution and Permen LH Nomor 5 tahun 2014 about the quality of waste water.The monitoring was conducted in three months at five sampling stasion (river upstream, river down stream, outlet WWTP plywood, outlet WWT workshop, outlet WWTP palm oil) in Districk Jair. The rsult showed, parameter of BOD, COD, phospate, phenol and total coliform in Digoel River exceeded class I of water quality standards. Outlet of plywood WWTP have two parameters that exceed the quality standard which were TSS 15.67 mg/L and phenol 13.33 mg/L.The outlet of WWTP workshop have four pameter exceeded the quality standard which were TSS (383.67 mg/L), oil/fats (502.0 µg/L), phenol (11.0 µg/L), and zinc (21,000 mg/L). IPAL oil WWTP outlet have two parameter sexceeded the quality standars which were oil/fats (313.0 µg/L) and total coliform (> 979 cells/100 mL). The result indicating  that the status of water quality of Digoel River are categorized as “lightly polluted”. Therefore based on utilization, it was categorized as class IV water quality that can be used for irrigating, planting and other purposed that meet the requairement of water qualiy in this class, while for other uses need necessary processing. In order  not to  increase the pollution in the Digoel river the WWTP of industry around Digoel River should improved their treatment, so that waste water discharged to the Digoel River not exceed the stanards quality.Key words: water quality, digoel river, status of water quality, pollutant index.

scholarly journals Effect of Batik Waste Water on Kali Wangan Water Quality in Different Seasons

2018 ◽  
Vol 31 ◽  
pp. 04010 ◽  
Author(s):  
S. Lestari ◽  
Sudarmadji ◽  
S.D. Tandjung ◽  
S.J. Santoso
Keyword(s):  
Waste Water ◽  
Random Sampling ◽  
Research Method ◽  
Government Regulation ◽  
Quality Standards ◽  
Class Iii ◽  
Kali River ◽  
Different Seasons ◽  
Dry And Rainy Seasons

Sokaraja Batik Center is one of batik industrial centers in Banyumas Regency. The craftsmen in Sokaraja Batik Center dispose of their waste water directly to a river named Kali Wangan. This study aims at figuring out the quality of Kali Wangan in dry and rainy seasons. The research is conducted along the Wangan River in January – November 2015. The research method used is survey with Purposive Random Sampling. The Kali Wangan water is sampled in four observation stations. The obtained data are analyzed descriptively and compared against the environmental quality standards. The research results show that the quality of Kali River water is found contaminated by the batik waste water, all parameters are below the class III standards quality based on Government Regulation Number 82 Year 2001 during dry and rainy season

scholarly journals STUDI ANALISIS KUALITAS AIR SUNGAI BAH BIAK KOTA PEMATANGSIANTAR

2021 ◽  
Vol 17 (2) ◽  
pp. 117-124
Author(s):  
Ewin Handoco
Keyword(s):  
Water Quality ◽  
Dissolved Oxygen ◽  
Chemical Oxygen Demand ◽  
Oxygen Demand ◽  
Quality Standards ◽  
Quality Standard ◽  
Quality Parameters ◽  
Water Sampling ◽  
Total Dissolved Solid

High community activity on the border of the Bah Biak River causes pollution in the waters of the river. The increase in the number of settlements and industries in Pematangsiantar city certainly has an impact on the quality of its waters. The purpose of this study is to find out the water quality of the Bah Biak River in Pematangsiantar City covering the physical and chemical parameters of the waters. This research was conducted in 2021 in Bah Biak River Pematangsiantar city. Water sampling in the Bah Biak River is carried out with three repetitions, namely in March, June and August taking into account the representation of the seasons. Water sampling is carried out in situ for parameters of brightness, pH, total dissolved solid (TDS), electrical delivery, temperature and dissolved oxygen (DO), ammonia, while for laboratory scale measurements are carried out for biologycal oxygen demand (BOD) and chemical oxygen demand (COD) parameters. The results of the measurement will be displayed in graphic form and descriptively discussed by referring to the specified quality standards. Based on the results of measurements of several water quality parameters in the Bah Biak River, it can be concluded that the majority of the parameters studied still meet the quality standards but there are parameters that have passed the quality standard threshold, namely BOD and ammonia parameters.   ABSTRAK Tingginya aktivitas masyarakat di sempadan Sungai Bah Biak menyebabkan pencemaran di perairan sungai tersebut. Peningkatan jumlah pemukiman dan industri di Kota Pematangsiantar tentu berdampak kepada kualitas perairannya. Tujuan penelitian ini adalah untuk mengetahui kualitas air sungai Bah Biak di Kota Pematangsiantar meliputi parameter fisik dan kimia perairan. Penelitian ini dilakukan pada tahun 2021 di Sungai Bah Biak Kota Pematangsiantar. Pengambilan sampel air di Sungai Bah Biak dilakukan dengan tiga kali pengulangan yaitu pada bulan Maret, Juni dan Agustus dengan mempertimbangkan keterwakilan musim. Pengambilan sampel air dilakukan secara insitu untuk parameter kecerahan, pH, total dissolved solid (TDS), daya hantar listrik, suhu dan dissolved oxygen (DO), ammonia, sedangkan untuk pengukuran skala laboratorium dilakukan untuk parameter biologycal oxygen demand (BOD) dan chemical oxygen demand(COD). Hasil pengukuran akan ditampilkan dalam bentuk grafik dan dibahas seacara deskriptif dengan merujuk pada baku mutu yang ditetapkan. Berdasarkan hasil pengukuran beberapa parameter kualitas air di Sungai Bah Biak maka dapat disimpulkan bahwa mayoritas parameter yang diteliti masih memenuhi baku mutu namun terdapat parameter yang telah melewati ambang baku mutu yaitu parameter BOD dan ammonia. Kata Kunci: kualitas air, aktivitas masyarakat, pencemaran, baku mutu, Sungai Bah Biak

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