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"Limbah cair UMKM lanting mengandung bahan organik dan sianida yang tinggi sehingga berisiko mencemari lingkungan. Data hasil pemeriksaan laboratorium pada salah  satu UMKM lanting di Kebumen pada tahun 2020 menyebutkan terdapat beberapa parameter masih melampaui baku mutu yang diperuntukkan berdasarkan Peraturan Menteri Lingkungan Hidup dan Kehutanan (Permen LH) Nomor 5 Tahun 2014 Tentang Baku Mutu untuk Industri Tapioka. Parameter tersebut yaitu TSS dengan konsentrasi 920 mg/L, COD dengan konsentrasi sebesar 1226 mg/L, konsentrasi BOD5 sebesar 465 mg/L dan konsentrasi sianida sebesar 1,19 mg/L. Instalasi Pengolahan Air Limbah (IPAL) komunal dengan kombinasi biofilter anerob-aerob menggunakan media plastik sarang tawon  (MPST) dan media batu kerikil (MK) telah digunakan untuk mengurangi konsentrasi bahan-bahan tersebut supaya tidak membahayakan lingkungan. Pengukuran terhadap efektivitas Instalasi Pengolahan Air Limbah lanting didapatkan hasil efektivitas sebesar 98,18% pada penurunan konsentrasi TSS, 17,02% pada penurunan konsentrasi COD, 6,85% pada penurunan konsentrasi BOD5, dan 80% pada penurunan konsentrasi sianida. Pengukuran terhadap aspek kesehatan masyarakat terhadap 51 respoden diperoleh hasil mengenai gangguan kesehatan responden yang dimungkinkan akibat pajanan oleh limbah cair berupa gatal-gatal (13,7%), iritasi kulit (3,9%), gangguan perut (2,0%), diare (3,9%), dan sesak napas (2,0%).

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Liquid waste of UMKM lanting contains high organic matter and cyanide, so there is a risk of polluting the environment. Data from laboratory examinations at one of the UMKM lanting in Kebumen in 2020 stated that there were several parameters that still exceeded the quality standards designated based on Peraturan Menteri Lingkungan Hidup dan Kehutanan (Permen LH) Nomor 5 Tahun 2014 concerning on Quality Standards in the Tapioca Industry. These parameters are TSS with a concentration of 920 mg/L, COD with a concentration of 1226 mg/L, BOD5 concentration of 465 mg/L, and cyanide concentration of 1.19 mg/L. Communal Wastewater Treatment Plants (WWTP) with a combination of anerobic-aerobic biofilters using honeycomb plastic media (MPST) and gravel media (MK) have been used to reduce the concentration of these materials so as not to harm the environment. Measurement of the effectiveness of the Lanting Wastewater Treatment Plant showed effectiveness of 98.18% for decreasing TSS concentration, 17.02% for decreasing COD concentration, 6.85% for decreasing BOD5 concentration, and 80% on reduction in cyanide concentration. Measurements of the public health aspects of 51 respondents obtained results regarding respondents' health problems that were possible due to exposure to liquid waste in the form of itching (13.7%), skin irritation (3.9%), stomach disorders (2.0%), diarrhea (3.9%), and shortness of breath (2.0%). "

"Besarnya penggunaan bahan bakar fosil sebagai sumber energi dan maraknya penebangan hutan menyebabkan peningkatan kadar gas rumah kaca terutama karbon dioksida (CO2) di atmosfir. Kultivasi mikroalga untuk produksi Biofuel dapat menjadi metode biofiksasi CO2. Penelitian mengenai biofiksasi CO2 pada Synechococcus HS-9 dengan variasi kecepatan aerasi telah dilakukan pada Rectangular Airlift Photobioreactor. Penelitian bertujuan untuk mengetahui kecepatan aerasi yang optimal terhadap biofiksasi CO2 pada Synechococcus HS-9 dan mengetahui pengaruh kecepatan aerasi terhadap pertumbuhan Synechococcus HS-9. Kultivasi mikroalga dilakukan dengan konsentrasi aerasi 1,5 % dengan variasi kecepatan aerasi 0,5 LPM, 1 LPM, dan 2 LPM. Hasil penelitian menunjukkan efisiensi reduksi CO2 optimal pada kecepatan aerasi 0,5 LPM. Efisiensi reduksi CO2 rata-rata pada kecepatan aerasi 0,5 LPM, 1 LPM, dan 2 LPM berturut-turut sebesar 80 %, 71 %, dan 32 %. Biofixation rate pada kecepatan aerasi 0,5 LPM, 1 LPM, dan 2 LPM berturut-turut sebesar 0,03 g/L/D, 0,27 g/L/D, dan 0,15 g/L/D.

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The large use of fossil fuels as an energy source and rampant deforestation have led to increased levels of greenhouse gases, especially carbon dioxide (CO2) in the atmosphere. Microalgae cultivation for biofuel production can be a method of CO2 biofixation. Research on biofixation of CO2 in Synechococcus HS-9 with variations in aeration speed has been carried out on the Rectangular Airlift Photobioreactor. The aims of the study were to determine the optimal aeration speed for CO2 biofixation in Synechococcus HS[1]9 and to determine the effect of aeration speed on the growth of Synechococcus HS-9. Microalgae cultivation was carried out with aeration concentration of 1.5 % with variations in aeration speed of 0.5 LPM, 1 LPM, and 2 LPM. The results showed the optimal CO2 reduction efficiency at an aeration speed of 0.5 LPM. The average CO2 reduction efficiency at aeration rates of 0.5 LPM, 1 LPM, and 2 LPM was 80 %, 71 %, and 32 %, respectively. The biofixation rate at aeration rates of 0.5 LPM, 1 LPM, and 2 LPM were 0.03 g/L/D, 0.27 g/L/D, and 0.15 g/L/D, respectively."

"DKI Jakarta merupakan kota metropolitan dengan kepadatan penduduk dan timbulan volume air limbah domestik yang tinggi. Instalasi Pengolahan Air Limbah (IPAL) Krukut merupakan perwujudan dari pengolahan air limbah terpusat skala perkotaan yang digunakan di Jakarta. Air limbah domestik yang tidak terolah dengan baik dapat mencemari lingkungan dan menyebabkan berbagai masalah lingkungan dan kesehatan masyarakat. Penelitian ini menggunakan desain deskriptif yang akan menjelaskan mengenai metode pengumpulan limbah, volume limbah, kualitas limbah, metode pengolahan, dan efektivitas pengolahan di IPAL Krukut pada periode bulan Mei 2022 sampai dengan bulan Mei 2023. Analisis kuantitatif dilakukan menggunakan rumus efektivitas oleh Spellman. Air limbah domestik dialirkan dari penghasil ke IPAL Krukut menggunakan sistem jaringan perpipaan. Metode pengolahan dilakukan melalui inlet chanel, moving bed biofilm reactor, koagulasi flokulasi, high rate clarifier, disinfeksi, dan filtrasi sand carbon filter. Rerata volume air limbah yang diolah oleh IPAL Krukut sebesar 6.979 m3 air limbah domestik setiap harinya yang berasal dari bangunan rumah tangga, niaga kecil, niaga besar, bangunan sosial, dan industri. Sebagian besar hasil effluent IPAL Krukut sudah memenuhi baku mutu yang berlaku dan IPAL Krukut sudah efektif dalam mengurangi kadar pencemar pada air limbah domestik di DKI Jakarta.

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DKI Jakarta is a metropolitan city with a high population density and generation of domestic wastewater. The Krukut Wastewater Treatment Plant (WWTP) is an embodiment of the urban-scale wastewater treatment used in Jakarta. Domestic wastewater that is not treated properly can pollute the environment and cause various environmental and public health problems. This study uses a descriptive design that will explain the wastewater collection method, wastewater volume, wastewater quality, processing method, and treatment effectiveness at the Krukut WWTP in the period from May 2022 to May 2023. Quantitative analysis was carried out using the effectiveness formula by Spellman. Domestic wastewater is channeled from the producer to the Krukut WWTP using a pipe network system. Processing methods are carried out through inlet channels, moving bed biofilm reactors, flocculation coagulation, high rate clarifiers, disinfection, and carbon filter sand filtration. The average volume of wastewater treated by Krukut WWTP is 6,979 m3 of domestic wastewater every day, originating from household buildings, small businesses, large businesses, social buildings, and industries. Most of the Krukut WWTP effluent has met the applicable quality standards and the Krukut WWTP has been effective in reducing pollutant levels in domestic wastewater in DKI Jakarta."

"Rumah Sakit Ibu dan Anak Resti Mulya dalam mengelola limbah cair menggunakan IPAL dengan sistem biofilter aerob-anaerob pada tahun 2014. Penelitian ini membahas efektifitas Instalasi Pengolahan Air Limbah di Rumah Sakit Ibu dan Anak Resti Mulya. Penelitian ini merupakan penelitian yang bersifat deskripsi observasional dengan pendekatan cross sectional. Hasil Penelitian terhadap kualitas effluent untuk parameter TSS, COD, BOD, minyak dan lemak tidak melebihi baku mutu yang ditetapkan oleh Pergub DKI Jakarta No. 69 tahun 2013 dan MenLH No. 05 tahun 2014. Sedangkan untuk parameter amonia dan total Coliform melebihi baku mutu yang ditetapkan. Rata-rata kualitas effluent untuk masing-masing parameter adalah : TSS 22,96 mg/L, amonia 8,90 mg/L, minyak dan lemak 0,995 mg/L, COD 50,61 mg/L, BOD 15,43 mg/L, dan total Coliform adalah sebesar 5.838 MPN/100 ml. Sedangkan berdasarkan analisis hasil laboratorium, efisiensi penurunan kadar pencemar untuk setiap parameter adalah : TSS 25,27 , amonia 56,26 , minyak dan lemak 50,37 , COD 54,36 , BOD 34,17 , dan total Coliform sebesar 60.81 . Persentase efisiensi IPAL dapat diketahui tidak hanya berdasarkan hasil outlet melainkan dengan menguji inlet secara berkala. Apabila parameter amonia, BOD, dan COD melebihi baku mutu yang telah ditetapkan , maka tindakan yang dapat dilakukan adalah dengan memperbaiki sistem aerasi dan melakukan treatment dengan menambahkan zat penetral seperti PAC.

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Resti Mulya Mother and Child Hospital in managing Waste Water Treatment Plant WWTP with aerob anaerob biofilter system in 2014. This research discuss effectiveness of Waste Water Treatment Plant Installation at Resti Mulya Hospital. This research is an observational description with cross sectional approach. The result of the research on the effluent quality for TSS, COD, BOD, Oil and fat parameters do not exceed the quality standard specified by Jakarta governor regulation No. 69 2013 and regulation of environment minister number 05 2014. As for amonia and total Coliform parameters exceeded standard Quality set. The average quality of effluent for each parameter are TSS 22,96 mg L, amonia 8,90 mg L, oil and fat 0,995 mg L, COD 50,61 mg L, BOD 15,43 mg L, and the total Coliform is 5,838 MPN 100 ml. While based on laboratory analysis, efficiency of decreasing pollutant level for each parameter are TSS 25,27 , ammonia 56,26 , oil and fat 50,37 , COD 54,36 , BOD 34,17 and total colimorm amounted to 60,81 . The percentage of WWTP efficiency can be known not only based on outlet results but by regularly testing the inlet. If the ammonia, BOD, and COD parameters exceed the predefined quality standard, then the action that can be done is to improve the aeration system and perform treatment by adding a neutralizing agent such as PAC. "

"Dalam perkembangannya, ARB, bersama dengan resistansi patogen lainnya, ditetapkan WHO menjadi salah satu ancaman kesehatan global terbesar. Extended-spectrum β- lactamase (ESBL) adalah suatu enzim yang diproduksi oleh bakteri Gram-negatif yang dapat mengembangkan kemampuan resistansi bakteri terhadap kelompok antibiotik betalaktam. Penelitian ini bertujuan untuk menganalisis konsentrasi ESBL-Kp dan rasionya terhadap total K. pneumoniae serta menganalisis efisiensi penyisihan K. pneumoniae dan ESBL-Kp pada IPAL di beberapa fasilitas pelayanan kesehatan di Jakarta. Sampel diambil secara grab sampling dari inlet dan outlet IPAL RS X, RS Y, Pustu A, dan Pustu B. Konsentrasi rata-rata bakteri K. pneumoniae total dari sampel tiap inlet yang tertinggi pada RS Y, yakni sebesar 9,72 log CFU/100 mL. Sampel outlet RS X dan Pustu A memiliki jumlah bakteri K. pneumoniae yang sama, yakni sebesar 1,53 log CFU/100 mL. Rasio positif ESBL-Kp terhadap bakteri K. pneumoniae pada objek studi, secara berturutturut: inlet RS X sebesar 13,66%; inlet RS Y sebesar 23,74%; inlet Pustu B sebesar 6,39%; dan inlet Pustu A sebesar 19,04%. Efisiensi penyisihan total bakteri K. pneumoniae pada inlet setiap objek penelitian secara berturut-turut: RS X sebesar 6,69 log; RS Y sebesar 7,56 log CFU/100 mL; Pustu A sebesar 6,81 log; dan Pustu B sebesar sebesar 7,136 log. Efisiensi penyisihan ESBL-Kp untuk RSUP Pustu A dan Pustu B sebesar 100%. Ditemukannya konsentrasi bakteri K. pneumoniae dan ESBL-Kp pada air limbah fasilitas kesehatan menunjukkan adanya urgensi untuk mengurangi risiko penyebarannya.

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Over time, ARB, along with other resistant pathogens, has been identified by WHO as one of the greatest global health threats. Extended-spectrum β -lactamase (ESBL) is an enzyme produced by Gram-negative bacteria that enables these bacteria to develop resistance to the beta-lactam group of antibiotics. This study aims to analyze the concentration of ESBL-Kp and its ratio to total K. pneumoniae, as well as the efficiency of K. pneumoniae and ESBL-Kp removal in WWTPs at several healthcare facilities in Jakarta. Samples were taken from the inlet and effluent of WWTPs at RS X, RS Y, Pustu A, and Pustu B using grab sampling. The highest average concentration of total K. pneumoniae bacteria from inlet samples was found at RS Y, at 9.72 log CFU/100 mL. In outlet samples, RS X and Pustu A had the same concentration of K. pneumoniae, at 1.53 log CFU/100 mL. The positive ESBL-Kp ratio to K. pneumoniae in the study subjects was as follows: RS X inlet at 13.66%; RS Y inlet at 23.74%; Pustu B inlet at 6.39%; and Pustu A inlet at 19.04%. The removal efficiency of total K. pneumoniae bacteria at each study site was as follows: RS X at 6.69 log; RS Y at 7.56 log CFU/100 mL; Pustu A at 6.81 log; and Pustu B at 7.136 log. The removal efficiency of ESBL-Kp for Pustu A and Pustu B is 100%. The presence of K. pneumoniae and ESBL-Kp concentrations in the wastewater of healthcare facilities underscores the urgency to reduce the risk of their spread."

"Pertumbuhan lalu lintas udara mendorong PT. Angkasa Pura II melakukan pengembangan berupa grand design Bandara Internasional Soekarno Hatta. Pengembangan ini berdampak pada peningkatan beban pengolahan air limbah yang masuk ke STP-745. Penelitian ini dilakukan untuk mengetahui karakteristik air limbah, kinerja STP eksisting, dan proyeksi peningkatan beban air limbah yang masuk ke STP sampai tahun 2030. Debit inlet STP tahun 2013 adalah 7.289 m3/hari dan debit outlet adalah 5.691 m3/hari. Hasil proyeksi tahun 2030 menunjukkan debit air limbah meningkat sebesar 14.735 m3/hari. Hasil evaluasi menunjukkan waktu detensi pada unit grit and grease remover, aerasi dan sedimentasi kondisi ekesisting belum memenuhi kriteria desain. Unit pengolahan STP-745 masih dapat mengolah air limbah sampai tahun 2030. Pada unit aerasi dilakukan penambahan nilai MLSS menjadi 3 kg/m3 dan pada unit sedimentasi rasio QR/Q ditingkatkan menjadi 100 agar kinerja pengolahan lebih optimal. Hasil analisa karakteristik efluen STP menunjukkan kualitas efluen berada di bawah baku mutu pengelolaan air limbah domestik.

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The growth of air traffic motivates PT. Angkasa Pura II in doing a grand design in Soekarno Hatta International Airport. The grand design affects the increase of wastewater load that is treated STP 745 Sewage Treatment Plant 745 . This research is aimed to study the characteristic of wastewater, the existing STP performance, and projecting the increase of wastewater load that enters the STP until 2030. STP inlet flow in 2013 was 7.289 m3 day and outlet discharge was 5.691 m3 day.

The projection result until 2030 shows the increase of wastewater discharge is 14.735 m3 day. The result of evaluation shows detention time in grit and grease remover, aeration and sedimentation unit of existing conditions are not matching the design criteria. The existing STP is still capable to treat wastewater until 2030. In the aeration unit, MLSS value is increased to 3 kg m3 and for sedimentation unit, QR Q ratio is increased to 100 in order to optimize STP performance. Result from analyzing the effluent characteristics shows that the effluent quality is still in the range as standardized by domestic wastewater management."

"Municipal and Industrial wastewater mostly comes within high concentration ofPhosporous containing compounds. Phosporous comes mainly from humanexcreta and from synthetic detergents and it is also the primary nutrientresponsible of algal bloom. If these wastewater are not treated to removesphosphorous and/or nutrient enrichment in both groundwater and surface watersthen it may leading to detrimental effects on water quality and eutrophication ofsurface water.Even though some methods such as reverse osmosis and electrodialysis have beensuggested to remove phosphorous compounds, such methods are proven to bevery costly. Therefore some countries are still looking for various methods whichwill be more effective as well as inexpensive. One of the method which in recenttimes is the use of coagulants such as calcium, aluminum, or iron salts into theWastewater Treatment Plant. The use of Ferric Chloride is an example of widelyused coagulant; however it creates systematic side effects to the treatment plant.Nevertheless, it is believed that this method is more effective removingPhosphorous in wastewater.Loganholme Wastewater Treatment Plant is the biggest wastewater treatmentplant in Queensland regions which start using this method in order to removesPhosphorous as well as aligning their system with the new statement fromEnvironmental Protection Agency (EPA) in terms of their discharge effluent intoThe Logan river. An approval from Queensland Government is needed to run thenew system, therefore some laboratory test has to be conduct in order to makesure that this new system is safe to run without too much disturbing the Loganriver ecosystem.Based on the laboratory results, it can be seen that this method are effective inremoving Phosphorous and also meets with the new regulation from EPA.However, one thing that should be pointing out is the dose of this coagulant should be used in appropriate way in order to prevent another effects that mightme occur in the appearance of this new method.;"

"Potensi emisi GRK yang dihasilkan dari pengolahan air limbah domestik meliputi gas metana (CH4), dinitrogen oksida (N2O), dan karbon dioksida (CO2). Potensi pemanasan global gas CH4 dan N2O bernilai 28 dan 265 kali lebih besar dibandingkan satu ton CO2 dengan waktu tinggal rata-rata 100 tahun. Penelitian ini berfokus pada pengukuran emisi GRK langsung (scope 1) dari unit IPAL X di Jakarta. Pengukuran gas CH4 dan CO2 yang dilakukan melalui metode headspace dan uji gas chromatography thermal conductivity detector (GC-TCD) pada 7 titik, meliputi unit inlet, unit ekualisasi, 4 tangki MBBR, dan unit outlet mendapatkan laju emisi CO2 sebesar 2,1 x 105 TgCO2e/tahun. Namun, penelitian ini tidak mendapatkan gas CH4 yang dihasilkan dari metode headspace dan uji GC-TCD. Hal tersebut dipengaruhi oleh tingginya kadar DO pada air limbah yang menghambat pembentukan CH4. Pengukuran emisi N2O yang dilakukan dengan sensor gas Unisense pada tangki MBBR 1 selama 6 hari berturut-turut mendapatkan laju emisi N2O sebesar 4,16 x 102 TgCO2e/tahun. Peningkatan suhu air limbah dari 30,55—30,98°C pada tangki MBBR dapat menurunkan konsentrasi N2O pada rentang 0,076—0,006 mg N2O-N/L. Faktor emisi CO2 dan N2O dari unit pengolahan biologis MBBR sebesar 2,61% ± 1,47 dan 0,04% ± 0,27 (rata-rata ± SD) secara berturut-turut. Unit MBBR tersebut beroperasi dengan kadar sCOD dan TN sebesar ± 152 mg/L dan 145 mg/L. Penurunan kadar DO dan sistem aerasi secara intermittent pada tangki aerasi merupakan aksi mitigasi utama yang potensial untuk diimplementasikan pada IPAL X di Jakarta dalam menurunkan emisi GRK langsung dari IPAL Domestik.

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Potential GHG emissions resulting from domestic wastewater treatment include methane gas (CH4), nitrous oxide (N2O), and carbon dioxide (CO2). The global warming potential of CH4 and N2O gases is 28 and 265 times greater than one ton of CO2 with an average residence time of 100 years. This study focuses on measuring direct GHG emissions (scope 1) from WWTP units X in Jakarta. CH4 and CO2 gas measurements were carried out through the headspace method and gas chromatography thermal conductivity detector (GC-TCD) tests at 7 points, including inlet unit, equalization unit, 4 MBBR tanks, and outlet unit obtained a CO2 emission rate of 2,1 x 105 TgCO2e/year. However, this study did not obtain CH4 gas produced from the headspace method and GC-TCD test. This is influenced by the high level of DO in wastewater which inhibits the formation of CH4. N2O emission measurements carried out with Unisense gas sensors in MBBR 1 tanks for 6 consecutive days obtained an N2O emission rate of 4,16 x 102 TgCO2e/year. An increase in wastewater temperature from 30,55—30,98°C in MBBR tanks can reduce N2O concentrations in the range of 0,076—0,006 mg N2O-N/L. CO2 and N2O emission factors from MBBR biological treatment units are 2,61% ± 1,47 and 0,04% ± 0,27 (average ± SD) respectively. The MBBR unit operated with sCOD and TN levels of ± 152 mg/L and 145 mg/L. Reducing DO levels and intermittent aeration systems in aeration tanks is a potential main mitigation action to be implemented at WWTP X in Jakarta in reducing GHG emissions directly from domestic WWTP."