Al-Ard: Jurnal Teknik Lingkungan

Evaluasi Tempat Penampungan Sementara (TPS) Sampah (Studi Kasus: Kota Bandung)

Nico Halomoan — 2023-09-30

Bandung City is one of the highest solid waste-producing cities in Indonesia. Waste management needs to be organized so that the waste produced does not harm urban areas. One example of waste management is providing temporary waste storage sites (TPS) as intermediate transfer stations. One hundred fifty-six permanent TPS operates in Bandung, spread over 30 sub-districts with various conditions, both running well and unsuitable conditions affecting waste handling. This study aims to identify the condition of TPS waste management in the city of Bandung and evaluate it based on technical criteria for appropriate TPS buildings. The method for assessing the feasibility of TPS is assessed using 17 criteria, including criteria for TPS buildings and facilities. The evaluation was carried out at 44 TPS in Bandung. The evaluation results show seven criteria for transfer stations with a high degree of conformity and ten for a low level of conformity. The evaluation results resulted in the need for efforts to improve and develop TPS so that it can be used according to the criteria.

Evaluasi Karakteristik Tempat Penampungan Sementara (TPS) di Kelurahan Karang Rejo Kota Balikpapan

Nia Febrianti — 2023-09-30

Transfer Station is one of the most important parts of waste management operational aspects. The condition of Transfer Station container is often neglected whether it meets the standards based on SNI 19-2454-2002 and Minister of Public Works Regulation Number 3 of 2013 concerning waste containers. The container of Transfer Station can be seen from the characteristics of it such as the shape, nature and material. Waste problems in Karang Rejo Village are caused by several factors such as the decrease in quality, the distribution of Transfer Station points, and community’s behaviour in disposing the solid waste. This study aims to analyze the distribution and provision of Transfer Station, analyze community behavior in disposing of waste and evaluate Transfer Station in Karang Rejo Village based on community behavior in waste disposal. This research is a qualitative research, the research procedures carried out are observation, identification of the provision and distribution of Transfer Station, analysis of Transfer Station conditions in a descriptive qualitative way, distribution and collection of questionnaires, data processing and the evaluation stage of waste containers according to people's behavior in disposing of waste. The results showed that in Karang Rejo Village there were 16 Transfer Station units where the distribution of it, was disproportionate, in terms of supply there were 8 out of 16 Transfer Station units whose buildings were in damaged condition (percentage <60%), 99% of the behavior of the Karang Rejo Village community in disposing of garbage by how to get off the vehicle and throw garbage into the Transfer Station and 90% of the Karang Rejo Village community did not know information about waste containers. The evaluation results showed that the Transfer Station in Karang Rejo Village was not in accordance with the standards and there were 10 units that required total renovation, and 6 units requires the addition of components such as lids on containers.

Remediasi Tanah Tercemar Timbal di Lokasi Pertambangan Emas Selogiri, Wonogiri dengan Menggunakan Tuf Zeolitik

Lia Nazmi Aida — 2023-09-30

Soil contamination was commonly found in gold mining location in Selogiri, Wonogiri, and Central Java and need serious attention for remediation action. This study aimed to investigate the mineralogical characteristic of zeolitic tuff and to analyze the influence of its characteristic for lead sorption on soil in mining, as mentioned earlier location. The soil sample was obtained from around the gold mining location. The zeolitic tuff was obtained in two locations in Gunungkidul, Yogyakarta: A and B. Zeolitic tuff samples were then characterized for mineralogy content using polarization microscopes, cation exchange capacity (CEC) by using barium chloride method and XRD (X-Ray Diffraction) analysis. A batch test was conducted on a laboratory scale by shaking zeolitic tuff samples with soil samples in a CaCl₂ solution. The solution was then shaken using a magnetic stirrer, and the filtrate was sampled at a specific time interval. The batch test result showed that the zeolite mineral percentage influenced the sorption behavior of zeolitic tuff in the sample and the value of CEC, which the more zeolite mineral and CEC value, the higher of sorption capacity achieved up to 58.8%. Hence, zeolitic tuff investigated in this study has a promising material for the remediation of Pb-contaminated soil in Selogiri, Wonogiri, and Central Java.

Pengaruh Konsentrasi Biokatalisator Cairan Rusip dalam Mereduksi Limbah Ikan menjadi Pupuk Organik Cair

Andri Kurniawan — 2023-09-30

Rusip is known to contain fermenting microbes such as lactic acid bacteria, fungi, and yeast which are almost similar to EM4. The content of bacteria contained in rusip liquid has the potential to be used as a local biocatalyst, one of which is in reducing waste in the manufacture of liquid organic fertilizer. This study aimed to examine the potential of rusip as a biocatalyst by knowing its effect in reducing fish waste into liquid organic fertilizer with different concentrations. Fertilizer was made by fermenting 200 g of fish waste with a concentration of 30%, 40% and 50% rusip liquid for 7 days. As a control treatment, 40% EM4 was used because this treatment gave the best results in decomposing fish waste in the manufacture of POC from previous studies. The results showed that the concentration of the rusip liquid biocatalyst had an effect on reducing fish waste into liquid organic fertilizer. The highest reduced waste weight and liquid fertilizer volume were produced by the P3 treatment, namely 78.7 g and 67 ml. The lowest pH value was obtained by the control treatment of 4.73 and followed by the P3 treatment of 4.9. The highest nitrogen value was obtained from the P3 treatment of 0.77%. The most dominant fertilizer characteristic was produced by the P3 treatment which produced the same visual characteristics of the fertilizer as the control treatment.

Penerapan Budaya K3 Terhadap Kinerja Karyawan Pada Department of Mining PT Semen Baturaja

Eriyana Yulistia — 2023-09-30

The company's goals will be achieved when it has good and qualified human resources. One of indicator that company has a good human resources governance, is when it puts safety and health of its employees as priority. The company through the Occupational Health and Safety (OHS) program, tries to protect its employees in all forms of work activities, as an effort to keep its workers away from accidents or injuries while working. This is also an effort to avoid diseases that occur in the short or long term due to the work that employees do in the company. Department of Mining at PT Semen Baturaja Tbk is one of departement whose activity in working process has high potential risk and danger. This research aims to know the impact of the implementation of OHS culture in the Department of Mining and how deep the implementation of OHS culture effects employee’s performance in working. Multiple Linear Regression Test in the SPSS 18 program is used to examine the data obtained through questionnaires and interviews, the value of the impact of implementing OHS culture on employee performance within the Department of Mining at PT Semen Baturaja will be known. From the analysis conducted, known that the regression coefficient X1 is 0.281, and the regression coefficient X2 is 0.577. From the F Test that conducted, it is obtained that t value is bigger than t table, means that the OHS culture factor has a significant impact on employee performance with a coefficient of determination is 16.5%. Thus, we can conclude that factor of implementing OHS culture has a real impact on employee performance within the Department of Mining at PT Semen Baturaja tbk.

Evaluasi Pengelolaan Sampah di Perusahaan Air Minum Dalam Kemasan

Mochamad Chaerul — 2023-09-30

Currently, bottled drinking water (AMDK) companies in Indonesia are growing rapidly due to the need for water that is ready for consumption by the community. This research aims to identify sources of waste and evaluate Solid Waste Management (SWM) system in a selected bottled water company. The research adopted descriptive analysis methods through field observations and compared existing SWM with best practices and available standards. In its production line, the selected AMDK company produces non-hazardous solid wastes from production and domestic activities. Non-hazarodus waste from production activity generated from rejected products in the bottled water production process, testing the quality of the bottled drinking water produced, product packaging, until product transportation for the distribution. Non-hazarodus waste from domestic activity/municipal solid waste (MSW) generated from employees and it contributed around 33.7% of the total non-hazardous waste generation. From the observation, the company have implemented MSW management by prioritizing the waste reduction and segregation at the source and at waste temporary storage (TPS), and waste processing such as composting and eco-brick innovations. Better campaign of waste segregation and sustainability of waste processing are some of recommendation resulted from the research to reduce as much as possible the amount of waste to be transported to the Final Processing Site (TPA).