Jernih: Jurnal Tugas Akhir Mahasiswa

CHARACTERISATION OF BRIQUETTE FROM THE BARK OF GALAM WOOD AND RUBBER SEED SHELL WITH COMPOSITION VARIATIONS AND RESIN GUM ADHESIVE TO COOKING OIL COATING

2024-10-18T04:43:18+08:00

Biomass energy can be used as a substitute for petroleum fuel (fossil) by converting it into briquettes which have a high calorific value. The aim of the study was to analyze the effect of variations in the composition of raw materials on the characteristics of the waste briquettes of galam bark and rubber seed shells in used cooking oil immersion. The independent variables in this study were variations in the composition of raw material for galam bark waste: rubber seed shell, namely 70%: 30%; 60%:40%; 50%:50%; 40%:60%; 30%:70%, and control variations of galam bark:rubber seed shell, namely 100%:0% and 0%:100%. The particle size of galam bark charcoal and rubber seed shell was 60 mesh, pressure was 200 kg/cm2 and resin adhesive was 9%. The best composition variation is 40% Galam bark and 60% rubber seed shell with a calorific value of 8006 cal/gr, 3.1% moisture content, 2.98% ash content, 84.26% volatile content, and 10.24 compressive strength. kg/cm².

Planning for a Tofu Wastewater Treatment Plant (WWTP) in Loktabat Utara Village, South Kalimantan

2024-11-01T09:44:18+08:00

Tofu is a soy-based culinary product. During the manufacturing process, the tofu industry generates solid refuse and liquid waste. The majority of the tofu industry lacks a sewage treatment infrastructure, so the resulting waste is discharged directly into the river. High levels of organic pollutants are present in liquid waste, which can cause significant pollution. The effluents discharged into the water must meet the established quality requirements. If the water discharged does not meet quality standards, it will pollute the environment. This research aims to evaluate the quality of wastewater produced by the tofu industry, as well as determine the most suitable treatment technology for the waste conditions and design a wastewater treatment plant (WWTP). The tofu industry's liquid effluent contains 2666.5 mg/L BOD, 12476.1 mg/L COD, and 3220.3 mg/L TSS. The selection of WWTP technology utilizes a scoring method based on criteria provided by the Technical Team for Sanitation Development. The chosen treatment unit is an Anaerobic-Aerobic Biofilter with a score of 4.3. The design of the WWTP model includes an equalization tank, initial sedimentation tank, anaerobic biofilter tank, aerobic biofilter tank, and final sedimentation tank.

EVALUATION AND PLANNING OF ENVIRONMENTALLY LOOKED DRAINAGE SYSTEM ON H. MISTAR COKROKUSUMO STREET SUNGAI TIUNG VILLAGE CEMPAKA BANJARBARU

2024-11-01T10:03:50+08:00

Because the capacity of natural or man-made channels can no longer support the flow of incoming rains, inundation may happen. Nearly every puddle in Cempaka District, with an average height of 20 cm and an inundation time of 6 hours or until the rain stops, is in a residential area, a rice field, or a plantation, according to the final report of the 2021 Banjarbaru City Environmental Road Drainage Masterplan. The goal of this plan is to study the anticipated flood flow, assess the drainage channel's capacity, suggest infiltration well proportions, and create a three-dimensional layout of the infiltration wells. With maximum daily rainfall data for 10 years (2012-2021), hydrological and hydraulic analysis was conducted for this design. According to the findings of the anticipated flood discharge calculation, segment 1 will experience a minimum discharge of 0.06 m3/s and a maximum discharge of 0.19 m3/s. This planning makes use of the Storm Water Management Model (SWMM) software, which enables modeling of the field's current drainage conditions by adding metrics collected under real circumstances. It is advised to include infiltration wells with a 1 m diameter and a 3 m well depth. To avoid flooding, infiltration wells will be installed to each section to lessen the projected flood flow that will enter the drainage canal and reach the water body.

PLANNING OF WASTE PROCESSING SITE 3R (REDUCE, REUSE, AND RECYCLE) BASSED, NORTH BANJABARU DISTRICT, BANJARBARU CITY

2024-11-01T09:55:41+08:00

Waste is the rest of human daily activities and / or natural processes in solid form. Waste can have a very bad impact on people's health and environment if it cannot be addressed. The waste problem must be handled appropriately. One alternative to improving waste management is by replacing or implementing an existing waste treatment site with a 3R (reduce, reuse, and recycle) based waste treatment site. The amount of waste generation is directly proportional to population growth. North Banjarbaru is one of the sub-districts in Banjarbaru City with an area of 26,855 km². North Banjarbaru District has a population of 53,770 people (as of 2021) and has a population growth rate of 1.31% annually, North Banjarbaru is the district with the densest population density of 2,162 people/km². The data processing method used in planning consists of site selection, population projection calculation, waste generation calculation, mass balance calculation, land/space needs calculation, and 3R TPS floor plan layout. The logarithmic method is used for the calculation of population projections and waste generation in TPS 3R planning because it has the best correlation coefficient value and standard deviation. The total population of waste generation in the planning year (2031) is 65.595 people and 28,206 tons/day. The planning location is located on Jl. Pd. Sejahtera, North Loktabat Village. The land area required for this plan is 365.3 m².

Keyword: waste, population, waste generation, TPS 3R planning

ANALISIS PH, KEKERUHAN DAN JARAK AIR BERSIH TERHADAP SISA KLOR PADA JARINGAN DISTRIBUSI PELANGGAN IPA 1 A.YANI PTAM BANDARMASIH ZONA BANJARMASIN BARAT

2024-11-01T10:00:23+08:00

Water is one of the crucial factors determining the basic needs of human life on Earth. The increasing demand for drinking water, if not accompanied by an increase in its production capacity, can lead to issues in service provision. PTAM Bandarmasih is a government institution responsible for providing clean water for the residents of Banjarmasin city. The objective of this research is to analyze the pH, turbidity, and distance of clean water related to residual chlorine in the distribution pipeline network within the customers' houses in IPA 1 A.Yani PTAM Bandarmasih Zone West Banjarmasin. This study is an analytical observational research using survey methods. A total of 30 water quality samples were taken from different locations, each representing a District Meter Area (DMA) block in the West Banjarmasin Zone. The data analysis employed univariate and bivariate analyses using Pearson correlation and Spearman Rank correlation. This method involved measuring all relevant variables and then conducting statistical analysis to observe the relationships between these variables. The research findings indicate that the average pH in the distribution water of IPA 1 A.Yani PTAM Bandarmasih is 7, with an average turbidity of 3.41 NTU. The average distance between customers' houses and IPA 1 A.Yani is 4.7 km. The analysis reveals strong correlations: pH with a correlation of -0.767, turbidity with a correlation of -0.779. The parameter most strongly related to residual chlorine value is the distance, with a very strong correlation of -0.850.

INVENTARISASI GAS EMISI RUMAH KACA YANG DIHASILKAN PT KALTIM METHANOL INDUSTRI DARI AUXILIARY BOILER DAN STACK REFORMER DENGAN METODE IPCC

2024-11-01T10:02:22+08:00

PT Kaltim Methanol Industri adalah perusahaan penghasil methanol satu-satunya di Indonesia dalam operasinya dapat menghasilkan emisi gas rumah kaca dari auxiliary boiler dan stack reformer. Penelitian ini bertujuan untuk menghitung dan menganalisis estimasi jumlah emisi gas rumah kaca CO₂ serta membandingkan dengan pengukuran alat di PT Kaltim Methanol Industri. Perhitungan emisi gas rumah kaca CO₂ dilakukan dengan menggunakan metode perhitungan sesuai pedoman IPCC Guideline 2006. Hasil penelitian menunjukkan bahwa besar emisi gas emisi rumah kaca dengan perhitungan metode IPCC pada tahun 2020 hingga 2022 bertutut-turut untuk tier 1 adalah 314.567,75 ton CO₂e, 279.269,49 ton CO₂e dan 285.195,41 ton CO₂e. Besar nilai tier 2 adalah 317.646,38 ton CO₂e, 281.275,62 ton CO₂e dan 286.3566,18 ton CO₂e. Besar tier 3 adalah 319.283,00 ton CO₂e , 283.066,04 ton CO₂e dan 288.073,27 ton CO₂e. Berdasarkan masing-masing nilai perhitungan yang paling mendekati dengan nilai pengukuran pada tahun 2020-2022 yaitu sama berada pada tier 3. Selisih tier 3 masing-masing tahun rentang 1-2% saja. Berdasarkan penelitian tersebut Gas Rumah Kaca di PT Kaltim Methanol Industri berbanding lurus dengan jumlah produksi methanol.

Kata kunci: Inventarisasi, methanol, emisi gas rumah kaca, IPCC.