The ammonia and total suspended solid (TSS) content in the wastewater of IPLT Duri Kosambi Jakarta City still does not meet the standard. It requires further processing that needs to be applied. The three treatments that are used as alternatives are GAC Adsorption, Zeolite Adsorption, and Built-Up Wetlands. The purpose of this study is to analyze the best alternative suitable for use as advanced processing in IPLT DuriKosambi with analysis of decision-making analysis. Analysis decision-making is carried out using the analytical hierarchy process (AHP) using four criteria: construction costs, TSS removal efficiency, ammonia removal efficiency, and Human Resources (HR) requirements. The highest scores of the GAC Adsorption, Zeolite Adsorption, and Constructed Wetland alternatives were 0.41; 0.30l, and 0.28. So that the GAC unit is the unit selected based on the criteria set in the AHP criteria.
One of the types of tofu industries in Indonesia is that the small-scale tofu industry was located in the East Jombor, Ketapang Village, to be precise, on the Blorong River. The Simplified Tofu Industry, with a 1300 kg/day production capacity, produces liquid waste that is disposed of into the Blorong River with a BOD parameter of 2,726 mg/L, COD of 4,972 mg/L, and TSS of 388 mg/L.These values greatly exceed the quality standards based on the Regional Regulation of Central Java Province Number 10 of 2004 concerning Tofu Industry. The entry of these pollutants into the Blorong River, over time, can cause water bodies to become toxic and pollute the Blorong River. Therefore, one of the efforts to protect this river's environmental conditions is to increase the efficiency of the Wastewater treatment plant and substitute the determined fuel through alternative scenarios. In the MBBR scenario, substituting diesel fuel into biomass is a type of biodiesel. Biodiesel has an advantage for the fire tube boiler industry because it can reduce exhaust emissions compared to diesel. Meanwhile, the existing wastewater treatment is substituted for the MBBR unit. The choice of MBBR as a wastewater treatment unit is because it is economical, does not require large land, is simple in development design, and is accessible in operation and maintenance. In the second scenario (SBR), a transition of Diesel fuel to LPG. LPG as a fuel input in the cooking process will result in cleaner emissions, especially on the SO2 parameter, and better because it has a higher heating value than diesel, 47,3 Tj/Gg. Both scenarios are analyzed regarding the magnitude of the impact on the environment using the OpenLCA method. The resulting impact magnitude on the OpenLCA method from each alternative is evaluated to obtain the best scenario. In the Tofu Industry, the best design the resulting impact is smaller than the SBR alternative.
Pandemi COVID-19 yang melanda dunia mengharuskan masyarakat untuk melindungi diri dari penularan penyakit melalui penggunaan alat pelindung diri (APD). APD dari COVID-19 seperti masker bedah (surgery mask), sarung tangan, pakaian dekontaminasi (hazardous material suit), dan pelindung wajah (face shield) sebagian besar terbuat dari plastik dan kebutuhannya meningkat tajam. Namun, limbah APD tidak dipahami masyarakat sebagai limbah B3 infeksius sehingga sering dicampur pembuangannya bersama dengan limbah domestik. Kondisi tersebut dapat ditemukan pada seluruh lokasi di Indonesia, terutama Daerah Khusus Ibukota (DKI) Jakarta. Berdasarkan laporan Dinas Lingkungan Hidup DKI Jakarta, penghasil limbah APD domestik tertinggi berada di daerah Jakarta Barat. Melalui penelitian dilakukan pengelolaan limbah APD di daerah Jakarta Barat berbasis Smart Infectious Waste Bank (SIWAB). Penelitian ini bertujuan untuk memperoleh timbulan limbah APD yang berasal dari rumah tangga dan merancang bank sampah yang didukung oleh teknologi digital (aplikasi) sebagai sarana pengelolaan limbah APD. Penelitian diawali dengan studi pendahuluan timbulan limbah APD beserta karakteristiknya dan dilanjutkan dengan perancangan SIWAB. Hasil penelitian berupa aplikasi SIWAB yang terintegrasi dengan smartphone. Penelitian ini akan memberikan kontribusi besar kepada pemerintah Jakarta Barat dalam pengelolaan limbah B3 infeksius khususnya dan Indonesia umumnya.ABSTRACTThe COVID-19 pandemic that surge the world, requires people to protect themselves from the transmission of disease by using Personal Protective Equipment (PPE). The COVID-19 PPE, such as surgery masks, gloves, hazardous material suits, and face shields, are mostly made of plastic and the need for procurement is increasing. However, the community does not understand the PPE waste as infectious hazardous waste, so often it mixed with domestic waste. This condition can be found in all regions of Indonesia, especially the Special Capital Region of Jakarta. Based on a report from the Jakarta Environment Agency, the highest producer of domestic PPE waste is in the West Jakarta. Through this research, PPE waste management was carried out in the West Jakarta area based on the smart infectious waste bank (SIWAB). This study aims to obtain PPE waste generation from household and to design a waste bank that is supported by digital technology (application) as a means of PPE waste management. The research begins with a preliminary study of the generation of PPE waste and its characteristics and next designing an SIWAB application. The research result is a SIWAB application that is integrated with smartphone. This research will make a major contribution to the West Jakarta government in managing Toxic and Hazardous Materials (THM) infectious waste and Indonesia in general.
Small scale business / Usaha Skala Kecil (USK) X currently does not have a batik wastewater treatment unit. This condition causes the possibility of contamination to water bodies. USK X wastewater treatment applications' planning needs to be carried out sustainably, namely by reusing water. The process units needed in this planning are the sequencing batch reactor (SBR) and constructed wetlands. The effluent of textile wastewater with this system for parameters BOD, COD, TSS, sulfide, total oil & fat, and color were 0.13 mg/L; 106.5 mg/L; 2.4 mg/L; 0.036 mg/L; 0.07 mg/L; and 90.67 PtCo, respectively. The dimensions of the SBR unit required are 0.75 x 0.6 x 1 m. Modification of the SBR unit uses an ozone generator to produce ozone gas which functions as oxidation of organic pollutants and colors in batik waste. After processing in the SBR unit, it is carried out using a constructed wetland with 2.56 m2.
<strong>Abstract:</strong> Fecal <strong>s</strong>ludge can be treated by conventional treatment such as pond stabilization which is commonly used to reduce organic concentrations. However, nutrients such as NH3 are still widely measured in the effluent. One of the sewerage treatments in the city of Jakarta, for example, experienced this condition. This study aims to design an appropriate technology to increase the efficiency of nutrient ammonia and total suspended solid (TSS) removal at Duri X IPLT. The unit added in the selected effluent treatment is Granular Activated Carbon (GAC). Design considerations are the characteristics of activated carbon, operating conditions (discharge and contact time), and operating mode (fixed-, expanded-, or fluidized-bed, pumped, or gravity flow). The Carbon Usage Rate for removing ammonia and TSS is 1.384 g/L and 0.378 g/L, respectively. Maintenance is required so that the granular activated carbon (GAC) unit can continue operating and functioning properly. Blockages in carbon transport pipes can occur in many pipes. This can occur due to a too-small pipe, a short bend radius of the pipe, a lack of speed, and a lack of cleaning of the pipe. The eroded pipe is also a common problem that often occurs in unlined mild steel and fiberglass reinforced plastic (FRP), usually in sharp bends.
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