IPTEK Journal of Proceedings Series
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Risk Management of Wastewater Treatment in the Wastewater Treatment Plant of PT. X
Get PDFThe economic rise as much as 5.5% in East Java region in the first quarter of 2018 compared to the first quarter of 2017, was due to the main supporting factor of an increase in the number of industries. An increase in industry has the potential to cause environmental pollution, especially in water bodies as evidenced by an index of water quality conditions for East Java rivers that now stands on Class II. Currently, PT. X in East Java is working on the expansion of its company. This study aims to identify the risks of wastewater treatment of PT. X using the fishbone analysis method and determine the priority of failures that must be handled using the FMEA method.For research purposes, two types of data are used, namely secondary and primary data. Secondary data includes flow chart of wastewater treatment, wastewater quality report and standard operating procedures. Meanwhile, the primary data for the quality of wastewater treatment was obtained through sampling, which was carried out at each wastewater treatment unit as well as the results of questionnaire with direct interviews. From those two types of data, an analysis of the potential occurrence of risk arises by using a fishbone analysis diagram. The risk results obtained through fishbone analysis are then processed using the Failure Mode and Effects Analysis (FMEA) method to obtain a Risk Priority Number (RPN). Then, the results of risk analysis from fishbone analysis are assessed into a priority of failures, expressed in Risk Priority Number (RPN).Based on the analysis of research data, it was concluded that the problem that occurred in wastewater treatment was inefficient wastewater treatment. The inefficient process was caused by the WWTP design conditions that were greater than the inlet discharge. Based on the results of data processing using the FMEA method, it was found that the largest RPN value was 12
Evaluation of Water Losses: Study Case in Intan Banjar Water Supply Company
Get PDFWater losses from water distribution networks have become a crucial problem. The BNA (Basic Need Approach) zone has high water losses above the standard for maximum tolerance ministry of public work as 20%. The water losses during September - December 2018 has experienced a fluctuation. the highest losses occurred in October at 36.05%, but in November the level of water losses decreased to 34.17%. The water balance can be used to know to understand the quantity, source, and charge of water losses. The water balance calculation in this study uses the WB-Easy Calc program version 4.05. Based on the result, the percentage of water losses 34,81% with the composition of real losses as 30,61% and apparent losses of 4.21%. On the other hand, the financial impact by the water losses was deficit as Rp. 4.593.648.335. Furthermore, gets to the action for each one of the above main components of the water balance in order to reduce water losses
Social Capital in Community Development at Prone Disaster Area: A Lesson Learnt at Sempu Village, Nglancar, Kediri, East Java, Indonesia
Get PDFThis study aims to analyze the role of social capital in community development in disaster prone areas. The study was conducted in a disaster-prone area of Mount Kelud, Sempu Village, Ngancar District, Kediri Regency after the eruption in 2014. The study used a qualitative method with an ethnographic approach. The results showed that after the eruption in 2014, social capital in the community became a source of strength in community development in the Mount Kelud disaster-prone areas, especially in the process of restoring the social and economic life of the Sempu village community. Social ties, trusts, social networks that are strongly intertwined are the elements of social capital that are still strong which are found in the study area. The results of the study also found a responsive, innovative and transparent leadership pattern developed by the Village Head helped accelerate the recovery process of the socio-economic life of the Sempu village community. The results of the study also revealed that the social capital owned by the local community was tested for strength when dealing with external forces such as the presence of institutions and volunteers involved in the recovery process. This situation triggered tensions between residents and the apparatus assigned to distribute aid
Analysis of Empty Containers Supplies in the Shipping Network: Case Study at National Shipping Company
Get PDFNational Shipping Company (NSC) is a national shipping lines servicing domestic routes and a logistic key player of sea transport in Indonesia. Focus of this research is to determine total containers inventory for all routes, containers safety stocks at primary ports as well as optimum empty containers reposition strategy based on market’s requirement, all with purpose to avoid potential empty containers shortage. Unbalanced container turnover between inbound and outbound is a global issue in the shipping industry. A very common method applied by shipping operators in balancing supply and demand is repositioning excess containers to deficit areas. Determination of total container inventory begins with the calculation of safety stock of container inventory in Surabaya and Jakarta as a demand location port. Main parameter forming the calculation model is forecast cargo at home base port per route, service schedule as well as swiftness of cargo stuffing and stripping. Furthermore, determining the best routes combination shall reduce amount of container inventory. Calculation model of producing total container inventory which should be provided in 2018 is 46,382 TEUs while total existing NSC’s inventory in 2018 is 48,567 TEUs. From the total existing inventory, 2,516 TEUs turned out to be inactive (idle) for more than 30 days, meaning the active ones were 46,051 TEUs. From this comparison, calculation model is able to describe existing condition at 99.3%. Using the same model, a change in route combination with a pendulum nusantara service was carried out, which resulted in 968 TEUs reduction of container potential and reduction of one vessel allocation. This leads to potential efficiency of IDR 40,624,648,190 (forty billion six hundred twenty four million six hundred forty eight thousand one hundred and ninety Rupiah) for operational of year 201
Kadar Kromium dalam Sediaan Gula Cair dan Optimasi Daya Simpannya sebagai Sediaan Gula Anti Diabetes
Get PDFTujuan penelitian ini adalah untuk mengetahui kadar kromium pada beberapa jenis sediaan gula cair alami serta mendapatkan perlakuan terbaik untuk mengawetkan rasa dan aromanya. Sampel berupa nira tebu berbagai varietas, dan air tape untuk gula anti diabetes. Kadar kromium ditentukan menggunakan Inductively Coupled Plasma (ICP), sedangkan jenis perlakuan berupa penyaringan menggunakan membran ultrafiltrasi dan Tyndalisasi. Hasil penelitian menunjukkan bahwa kadar kromium dari seluruh sampel gula cair yang diteliti, lebih tinggi dibanding gula kristal putih dan penyaringan dengan membran ultrafiltrasi maupun Tyndalisasi pada sediaan gula cair mampu meningkatkan rasa dan aroma serta daya simpan sediaan gula cair pada suhu ruang dari 1-2 hari menjadi 6 sampai 7 hari
Capability of Farmers Adaptation towards Natural Resources Vulnerability in Wajak, Malang
Get PDFExtreme climate is at risk of a water resource crisis. Land degradation provides challenges for farmers to switch to non-agriculture or not worked on. In cases that occur, then several problems arise including 1) how the internal conditions of the socio-ecological farmers, 2) adaptation of farmers to the crisis of water resources and 3) the role of non-agricultural work in overcoming economic uncertainty. Issues relating to the Socio Ecology System (SES) were examined by mixed methods. It is known, the type of soil on land generally is inceptisol. Mixed cropping system between cassava and cane was chosen to anticipate the loss of farmers, especially when water is difficult. The vulnerability of natural resources encourages farmers to behave creatively and adaptively in carrying out their life activities. The form of adaptation ability of farmers is to utilize the potential of dairy cattle and goat farming when agricultural land is difficult to cultivate. For those who do not have livestock, they take jobs as miners of sand and wood. Sand and wood as future savings. Various non-agricultural activities are able to support many farmers, especially for those who experience a natural resource crisis
Education for Environmental Sustainability: A Green School Development
Get PDFNatural environment should be cared and sustained. It is a place for human to live and develop their social and economical world. Moreover, it is also a site for many biodiversity to live together in a balanced ecosystem. Recently, global awareness is directed to the alarming destruction of environment and its’ potential threats for human and other living things, as the impacts of human social-economical activities. Many efforts are executed to avoid or minimize future environmental damage. One of those endeavours is environmental education for young generation. Growing children’s environmental knowledge, protection skills and management as well as caring and responsible character can be an endurant solution. This study aims to examine some learning aspects in environmental education through green school development in MI Walisongo, Desa Sawohan, Sidoarjo. The study is based on a qualitative inquiry conducted by using direct participant observation as its’ data collection method. The study finds that environmental education requires a wide range of learning experiences, relating to emotion, direct practice and cognition development. In Green School MI Walisongo Desa Sawohan, those experiences are manifested into several learning processes: participative learning, modeling, character building, green site building, learning through game and peer team working
Study of Water Retention Measurement on Concrete Using Paper Filter Whatman No.42
Get PDFThis study aimed to know water retention on concrete using paper filter Whatman No.42. The study was conducted as experimental in laboratory by making two types of specimen with different Water Cement Ratio (WCR); 0.5 and 0.6. Each specimen was immersed for 28 days. Next step was finding the time of consistency water content on specimen and paper filter. Then, water retention could be measured. As a validation of water retention measurement, so the results were compared with saturated salt solution method in dessicator. This study used NaCl, KCl, and H2SO4 as saturated salt solution. The results of water retention measurement were shown in graph
ITS Community Service Program as A Medium to Empower Community in Facing the Era of Industrial Revolution 4.0
Get PDFAs agents of change, students are required not only to have knowledge and expertise in their fields, but they must also be ready to be in the community to implement the knowledge and skills they have, help solve real problems faced by the community or provide knowledge and skills to the community so they can lead better life. To meet these goals, Institut Teknologi Sepuluh November (ITS) conducted community service program (KKN) for students to communities. In line with ITS students’ background, the themes of KKN were related with technology and its applications, so that the KKN activities in the community were also inseparable from the theme of technology and its application. Thus, KKN ITS is the right medium to help the community in facing the current era of the industrial revolution in which technology and its application serve as its core
