19 research outputs found
EKSTRAKSI ALUMINIUM DARI TANAH LEMPUNG GAMBUT SEBAGAI KOAGULAN CAIR
No full textABSTRAKAluminium adalah bahan utama yang terkandung dalam koagulan yang umum digunakan dalam proses koagulasi. Aluminium merupakan kandungan elemen ketiga terbesar yang terdapat pada lapisan kulit bumi, yang terdapat dalam mineral, bebatuan dan tanah liat, seperti tanah lempung gambut yang mengandung garam aluminium, telah dapat dijadikan koagulan bantu. Pada penelitian ini dilakukan pengembangan dengan mengekstraksi aluminium yang terkandung dalam tanah lempung gambut yang mengandung 18,78% Al2O3 dijadikan kogulan pengganti (PAC) untuk menurunkan zat organik alam pada air gambut. Hal yang ingin dicapai dari penelitian ini adalah dihasilkannya koagulan cair dari tanah lempung gambut yang ada di Indonesia. Koagulan cair diekstraksi dari tanah lempung gambut dari Kalimantan Selatan dengan menggunakan pelarut asam sulfat (H2SO4). Untuk mendapatkan Al2O3 dari tanah lempung gambut tersebut, tanah dikalsinasi dan diekstraksi. Proses pengaktifan Aluminium dari tanah dipengaruhi oleh ukuran butiran tanah, temperatur kalsinasi dan waktu kalsinasi. Untuk proses leaching dipengaruhi konsentrasi dan jumlah H2SO4 dalam kondisi mendidih.Kata kunci: asam sulfat, ekstraksi, kalsinasi, koagulan cair, tanah lempung gambut. ABSTRACTAluminum is the primary material contained in commonly used coagulant in the coagulation process. Aluminum is the third largest content of elements found in the earth's crust in the form of minerals, rocks and clay. Peat loam soil is one of the class that contains of aluminum salts and can be used as coagulant aids. In this research, further development by extracting aluminum contained in peat clay. In which the aluminum in the form of 18.78% Al2O3 on clay peat coagulant used as a substitute for the (PAC). The aim of this research was the production of liquid coagulant of clay peat in Indonesia. This liquid coagulant extracted from peat loam soil of South Kalimantan using sulfuric acid solvent (H2SO4) with a concentration of 40%. To obtain Al2O3 from the peat loam soil, the soil had to be calcinated and extracted. The aluminum activating processes of soil was influenced by soil particle size, temperature and duration of calcination. Meanwhile the leaching process was affected by the amount and concentration of H2SO4 in boiling conditions.Keywords: calcinations, extraction, liquid coagulant, sulfuric acid, the clay peat</jats:p
KRUENG BRAYEUN'S POTENTIAL AS A RAW SOURCE OF DRINKING WATER FOR BANDA ACEH CITY AND ACEH BESAR DISTRICT IN ATTAINING SDGS (SUSTAINABLE DEVELOPMENT GOALS)
No full textThis study aims to analyze the potential of krueng brayeuen as a raw source of drinking water for the city of Banda Aceh and Aceh Besar district. Data was collected through document analysis and analysis of water samples taken from 5 different points in the Krueng Brayeuen watershed. Water quality analysis includes metal content of Fe, Mn, ammonia content, Total Dissolved Solid (TDS), and organic matter content. While other qualities include color, odor, taste, chlorine content, and others. The results showed that the water discharge of krueng brayeuen every year showed a promising value to be used as a source of raw water. The results of the water quality test showed that the water in Krueng Brayeuen was tasteless, colorless and odorless. Testing of all other water parameters such as iron content, Mn content, ammonia content and organic matter content met the drinking water standards in general where the levels were still below the threshold set by PP. 22/2021. Based on the results of the analysis of water quality and contamination, it can be concluded that krueng brayeuen water is very suitable to be used as a raw source of drinking wate
PENGELOLAAN SAMPAH BERBASIS GAMPONG DENGAN MENDIRIKAN BANK SAMPAH SEBAGAI UNIT USAHA BADAN USAHA MILIK DESA (BUMDES)
No full textUpaya untuk mengatasi penangan sampah di sumber, terutama pada daerah pedesaan harus melibatkan pemangku kepentingan dan masyarakat desa itu sendiri. Gampong Serambi Indah, Kecamatan Langsa Barat terletak di pinggir provinsi Aceh, potensial untuk mengelola sampah di desa sesuai dengan ketentuan yang berlaku dan diharapkan nantinya dapat meningkatkan perekonomian masyarakat desa dengan pengelola sampah. Tujuan penelitian ini adalah merencanakan sistem pengelolaan sampah berbasis gampong dengan mendirikan Bank Sampah untuk income bagi Gampong. Metode penelitian berupa survey partisipasi masyarakat terhadap pengelolaan sampah dan penghitungan sampling sampah mengacu pada SNI 19-3964 1994. Hasil penelitian menunjukkan bahwa timbulan sampah gampong Serambi Indah yang adalah 0,14 kg/orang/hari atau 1,16 L/orang/hari dengan komposisi terdiri dari 20% plastik, 1% kaca, 53% sisa makanan (organik), 5% kain/tekstil, 2% kertas dan 19% kayu. Tingkat pelayanan pengelolaan sampah di gampong ini baru 54%. Dengan adanya Bank sampah ini diharapkan dapat mengurangi sampah sebesar 59% yaitu sebesar 181 kg dari 370 kg yang diangkut ke TPA
SATUAN TIMBULAN DAN KOMPOSISI SAMPAH DOMESTIK KABUPATEN TANAH DATAR
No full textPenelitian ini bertujuan untuk mendapatkan data timbulan dan komposisi sampah domestik di Kabupaten Tanah Datar serta dapat membandingkan perbedaan timbulan dan komposisi sampah yang dihasilkan berdasarkan tingkat pendapatan masyarakat (High income, Medium income dan Low income). Data timbulan dan komposisi sampah diperlukan dalam perencanaan dan pengembangan sistem pengelolaan sampah. Sampling timbulan dan jumlah sampling dilakukan berdasarkan SNI 19-3964-1994. Hasil penelitian timbulan sampah domestik dalam satuan berat 0,232 kg/o/h dan dalam satuan volume 3,646 l/o/h. Berdasarkan tingkat pendapatan dalam satuan berat High Income (HI) 0,308 kg/o/h, Medium Income (MI) 0,198 kg/o/h dan Low Income (LI) 0,190 kg/o/h dalam satuan volume HI 4,269 l/o/h, MI 3,835 l/o/h dan LI 2,835 l/o/h. Timbulan sampah yang dihasilkan penduduk dengan High Incame lebih besar dibandingkan dengan penduduk dengan pendapatan Medium Income dan Low Income. Komposisi sampah domestik untuk sampah basah 75,5%; sampah plastik 16,6%; sampah kertas 5,3%; sampah tekstil 0,8%; sampah kayu 0,3%; sampah kaca 0,7%; sampah logam ferrous 0,2%; sampah logam non ferrous 0,1%; dan sampah lain-lain 0,5%.Kata kunci: sampah domestik, komposisi sampah, timbulan Sampah</jats:p
STUDI TIMBULAN, KOMPOSISI, DAN POTENSI DAUR ULANG SAMPAH KAWASAN PT SEMEN PADANG
No full textTujuan penelitian ini adalah menentukan timbulan, komposisi dan potensi daur ulangsampah PT Semen Padang. Rata-rata timbulan sampah harian PT Semen Padang dalamsatuan berat adalah 0,076 kg/o/hr sedangkan timbulan dalam satuan volume adalah0,954 l/o/h. Berdasarkan sumber, diperoleh timbulan sampah fasilitas perkantoran1,688 l/o/h, fasilitas sekolah 0,485 l/o/h, fasilitas perumahan 0,675 l/o/h, fasilitas industri0,686 l/o/h, fasilitas kesehatan 0,959 l/o/h, fasilitas social center 3,117 l/o/h, fasilitasolahraga 1,181 l/o/h, fasilitas ibadah 0,107 l/o/h, jalan 1.067 l/m2/h, dan taman 1,231l/m2/h. Komposisi sampah didominasi oleh sampah organik 96,940%, yang terdiri atassampah sisa makanan 29,720%, kertas 29,450%, plastik 21,350%, sampah halaman12,350%, tekstil 3,050%, kayu 0,580%, karet 0,420%, dan sampah anorganik hanya3,060% yang terdiri atas logam non ferrous 1,340%, logam ferrous 1,220%, kaca0,480%, dan sampah lain-lain 0,020%. Komponen sampah yang bepotensi didaur ulangadalah sampah halaman 100%, sampah plastik 96,090%, logam non ferrous 83,590%,sampah makanan 80,280%, sampah kaca 77,810%, sampah kertas 71,220%, sampahlogam ferrous 66,670%, dan sampah kayu 52,130%. Rata-rata potensi daur ulangsampah berdasarkan sumber sebesar 83,800% yang terdiri dari potensi daur ulangsampah kering 36,51% dan potensi daur ulang sampah basah 47,900%.Kata kunci: komposisi sampah, potensi daur ulang sampah, PT Semen Padang, timbulansampah.</jats:p
Efektifitas Fly Ash Batubara Sebagai Adsorben Dalam Menurunkan Parameter BOD, COD Dan Kadar Fe, Mn, Dan Zn Pada Air Lindi TPA Blang Bintang, Aceh Besar
No full textproses penimbunan yang terus menerus di Tempat Pembuangan Akhir (TPA) Blang Bintang Aceh Besar menghasilkan polutan berupa lindi. Kadar pencemar yang terkandung dalam lindi khususnya kandungan logam dapat diolah dengan menggunakan abu layang batubara sebagai adsorben. Penelitian ini bertujuan untuk melihat kemampuan adsorben dalam menyerap polutan pada lindi berupa BOD, COD, Fe, Mn dan Zn. Adsorben yang digunakan dalam penelitian ini adalah fly ash batubara yang telah dipirolisis pada suhu 110oC dimodifikasi menjadi ukuran nano dengan larutan asam sulfat teraktivasi. Adsorben yang diperoleh diuji kapasitas dan efektivitas adsorpsinya terhadap penyerapan BOD, COD, Fe, Mn dan Zn dengan variasi massa (35 gr, 50 gr, 65 gr, 80 gr, dan 100 gr) dan kecepatan pengadukan 300 rpm dengan waktu kontak 60 menit. Konsentrasi awal BOD, COD, Fe, Mn dan Zn adalah 162 mg/L, 1.405 mg/L, 6,8 mg/L, 2,1 mg/L, dan 5,03 mg/L. Hasil penelitian menunjukkan bahwa ukuran adsorben, dan variasi massa mempengaruhi kapasitas dan efektivitas adsorpsi. Pada massa optimum 100 gr/L, efektifitas Mn sebesar 98,09%, Zn sebesar 97,41%, Fe sebesar 97,20%, BOD sebesar 78,39% dan COD sebesar 14,80%. Hasil pengujian keempat parameter yaitu BOD, Fe, Mn dan Zn sesuai dengan baku mutu lindi, sedangkan pengujian parameter COD belum memenuhi baku mutu yang ditentukan
PEMANFAATAN ARANG AKTIF KULIT JENGKOL (Pithecellobium lobatum) SEBAGAI ADSORBEN DALAM MENYISIHKAN KADAR COD DAN TSS PADA LIMBAH CAIR TAHU
No full textTofu liquid waste comes from the washing process, boiling, and printing on tofu production. Tofu liquid waste is usually directly discharged into rivers or sewers which can have a negative impact on the environment. Tofu wastewater treatment with activated charcoal adsorption methods can reduce the concentration of pollutants contained in the waste. This research was conducted to determine the effect of variations in stirring speed in the removal of COD and TSS levels in tofu liquid waste. The adsorbent used in this study was activated charcoal from the skin of jengkol (Pithecellobium lobatum) carbonized at 350ºC which was then activated using 1M HCL. The adsorption process in this study used a mass of 2 g of activated charcoal; 4 g, 6 g and 8 g and stirring speed 60 rpm and 120 rpm. The initial concentrations of COD and TSS were 5140 mg/L and 605 mg/L. The results of the research that have been carried out show that the stirring speed and mass of the adsorbent affect the levels of COD and TSS as well as the effectiveness and adsorption capacity. A significant decrease in COD and TSS levels occurred in the treatment using 8 g of activated charcoal and a stirring speed of 120 rpm. The COD value obtained was 1137 mg/L, TSS was 103 mg/L and the efficiency value obtained was COD of 77.88% and TSS of 82.98%
Food waste reduction efforts in reducing greenhouse gas emissions and the impact of climate change: A review
No full textFood waste (FW) is a global challenge with profound environmental, economic, and social implications, particularly through its substantial contribution to greenhouse gas (GHG) emissions. This review aims to synthesise evidence on the relationship between FW reduction strategies and climate change mitigation, with a focus on its potential valorisation as bioenergy. A systematic examination of the recent literature was conducted, addressing the composition, physicochemical characteristics, and conversion technologies, including hydrothermal liquefaction, pyrolysis, fermentation, and anaerobic digestion. The findings indicate that FW accounts for up to 8 % of global GHG emissions, predominantly methane, which has a far greater warming potential than CO₂. Reduction and recovery strategies could mitigate millions of tons of CO₂-equivalent annually while generating high-value biofuels. Hydrothermal liquefaction emerges as the most suitable technology for high-moisture FW, with significant potential for yield improvement through pretreatment and catalytic enhancement. The novelty of this review lies in its integration of policy, practice, and technological perspectives into a unified analytical framework, encompassing regulatory instruments, supply chain innovations, and opportunities for developing a circular bioeconomy. In conclusion, reducing FW is not only an ethical imperative but also a practical pathway toward climate change mitigation, offering co-benefits for food security, energy sustainability, and intergenerational equity
Utilization of Carbide Waste Using Goat Manure Activator for Mine Soil Remediation
No full textOne way to improve the quality of wastewater and preserve the living environment is to use WWTP. WWTP is the final wastewater disposal and treatment facility. Pre-treatment, primary treatment, secondary treatment, and tertiary treatment are several stages of the wastewater treatment process. Wastewater treatment can reduce the levels of organic substances, nutrients, and harmful substances in wastewater, as demonstrated by liquid waste characterization values such as pH, TDS, TSS, BOD, and COD. As a result, WWTP can be used in a variety of industries. Wastewater management meets environmental standards set by government regulations. Wastewater treatment with WWTP can improve the quality of wastewater before discharging it into the environment and reduce waste pollution.
 
CAPABILITY OF GREEN OPEN SPACE VEGETATION REDUCING CARBON EMISSIONS IN THE TRANSPORTATION SECTOR (CASE STUDY OF THE SIMPANG JAM AREA IN BANDA ACEH CITY)
No full textThe area of Bundaran BNI 46 Simpang Jam in Banda Aceh is an area that is often crowded with motorized vehicles. Motor vehicles produce CO as their exhaust gas. Excessive levels of CO in the air can harm human health. CO can turn into CO2 in the air. Overrated CO2 in the environment can cause greenhouse gas effects and global warming. CO2 can be absorbed by plants for their use in the photosynthesis process. The absorption of CO2 for each vegetation is different starting from very high to low. This research is a quantitative study to determine the total absorption capacity of vegetation in the area of Bundaran BNI 46 Simpang Jam on CO2 emissions which was done on April 2020. Calculating vehicle emissions and vegetation absorption using manual counts method at peak hours and calculations based on literature. From the research, it is known that the total number of vehicles passing through the area is 3250 motorized vehicles/hour with total emissions of 7,343,017,347 Kg/year. The total absorption capacity of 351 vegetation in that area is 614,410.30 kg/year. Accordingly, the area's vegetation is unable to absorb CO2 emissions optimally. To optimize CO2 absorption, vegetation replacement must be carried out. The tree combinations that can be selected to absorb all of the area's CO2 emissions are 320 Trembesi, 326 Kasia, 340 Glondokan, 305 Kenanga and 215 Beringin
