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<![CDATA[PROSPEK SKENARIO KEBIJAKAN PENGELOLAAN LINGKUNGAN KAWASAN INDUSTRI (Studi Kasus Kawasan Industri Jababeka dan EJIP di Kabupaten Bekasi) ]]>
<![CDATA[Temmy Wikaningrum]]>
<![CDATA[ Journal of Environmental Engineering and Waste Management Vol 3, No 1 (2018) ]]>
Publisher : <![CDATA[President University ]]>
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DOI: 10.33021/jenv.v3i1.401
<![CDATA[Abstract:. The key factors which supported to develop sustainaibility in the environmental management in the industrial estate was studied by many approaches. The principles of analysis were elaborated by the multi dimension key factors that affecting the policy of the environmental manager in ecology, economy, social, technology and estate management aspects. This study was initiated by considering and combining the dominant factors which the results of prior researches that using Multi-Dimensional Scaling (MDS) method. The dominants factors were reveiwed by expert judgment approach by Bourgeois matrix as the propective analysis tool. The analysis was focus in the key factors that has low value in the dependence (<1) but has high value in the influence (>1) of the normalized graph of dependence-inluence. The key factors were a) implementation of 3R for hazardous waste; b) industrial wastewater quality; c) industrial estate wastewater quality ;d) labor condition, and e) industrial water demand. The study was analyze that the optimistic scenario can be obtainedby the industrial estate manager by conducting the strategic steps. The initial program was recommended by enforcing the industrial companies to improve their waste water quality and increasing 3R of hazardous waste, that will enhance increasing the waste water quality of the centralized wastewater treatment of industrial estate. The environmental synergy between industrial company and industrial estate management will promote the good labour condition and stakeholders trust for more business opportunities that indicated by increasing industrial water demand.]]>
<![CDATA[The Study of Using Recycled Chemical Floc for Reducing Chemical Doses in Water Treatment Process (Case Study: Ciliwung Water River at Bojong Gede Sub-District) ]]>
<![CDATA[Aura Ryumandhina Aninditya]]>;
<![CDATA[Temmy Wikaningrum]]>
<![CDATA[ Jurnal Serambi Engineering Vol 7, No 2 (2022): April 2022 ]]>
Publisher : <![CDATA[Fakultas Teknik ]]>
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DOI: 10.32672/jse.v7i2.3872
<![CDATA[Good water quality following to the criteria for clean water, a series of treatments is needed. One of the processes that aim to reduce turbidity value is coagulation-flocculation. To achieve the maximum result, optimum doses of coagulant are needed. This study aimed to explore the potential for the reuse of chemical flocs to reduce the optimum dose and effect on pH and water turbidity values. The method used is laboratory experiment using a jar test with rapid and slow stirring of 180 rpm for 90 seconds and 40 rpm for 10 minutes, respectively with 30 minutes of sedimentation. The characteristics of the flocs used are 76% from PAC with variants volume from 0.5 ml to 3 ml, which impact decreasing the optimum dose by 50% with achievement of turbidity value 0.16 NTU or equivalent to 99.65% reduction efficiency. Using the T-Test Two-Sample Equal Variances between the optimum dose turbidity value and decreasing the dose combined with the recycled floc, the p-value less than 0.05, means that chemically recycled has a significant different on the turbidity value. Meanwhile, the p-value obtained between the pH value before and after the addition of recycled flocs is less than 0.05, hence the water after treatment has less acidic than the conventional method. Water pH is significant different showed as less reduction of pH by having recycled PAC flocs.]]>
<![CDATA[Reduksi Energi Pengolahan Air Limbah di Kawasan Industri Dengan Implementasi Teknologi Food Chain Reactor (Studi Kasus : Kawasan Industri Jababeka Bekasi) ]]>
<![CDATA[Temmy Wikaningrum]]>;
<![CDATA[Rijal Hakiki]]>
<![CDATA[ Jurnal Serambi Engineering Vol 5, No 3 (2020) ]]>
Publisher : <![CDATA[Fakultas Teknik ]]>
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DOI: 10.32672/jse.v5i3.2078
<![CDATA[Biological-aerobic process is a technology that is often chosen to treat wastewater in industrial areas, especially industries related to food industries. Compared to chemical treatment and advanced treatment, biological treatment is relatively more efficient in the costs required. However, in conventional biological treatment the amount of energy consumption in the process is a major cost component that it becomes one of the challenges in implementing this technology. This paper contains a review of the implementation of the Food Chain Reactor (FCR) technology in treating industrial area wastewater, focusing on an overview of energy consumption compared to conventional biological-aerobic treatment of oxidation ditch (OD). FCR is a wastewater treatment plant (IPAL) that combines Integrated Fixed Film Activated Sludge (IFAS) technology and technology that resembles Constructed Wetland, thus enabling the simultaneous physical, biological and biochemical treatment processes within the reactor. In this case study, the implementation succeeded in showing a reduction in energy consumption by 46.4% while maintaining an efficiency decrease in BOD by 83% and efficiency in decreasing ammonia by 82%. As with the OD process, in this FCR study showed that the denitrification process has not been successful.]]>
<![CDATA[The Study of Improving Acid Mine Water Quality by Manganese Greensand and Activated Carbon Filtration ]]>
<![CDATA[Mayabella Puspita Nugraha]]>;
<![CDATA[Temmy Wikaningrum]]>
<![CDATA[ Jurnal Serambi Engineering Vol 7, No 2 (2022): April 2022 ]]>
Publisher : <![CDATA[Fakultas Teknik ]]>
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DOI: 10.32672/jse.v7i2.3850
<![CDATA[Bangka Belitung is one of the provinces in Indonesia known as a tin-producing area. Illegal tin mining results in excavated holes. The characteristics of the water in the ex-mining pits are acidic and contain heavy metals such as iron. This journal aims to determine the effect of filtration in improving the quality of water samples and to determine the best doses of Na2CO3 and KMnO4 as pre-treatment. Also to find out which experiment resulted in higher Fe removal efficiency and whether the quality of the treated water complies with the Regulation of the Minister of Health Number 492 of 2010. This study used primary data of pH and iron content as dependent variables. The population of this research is Alang Lake water that taken by random sampling method. The experiment was carried out on a lab-scale with two independent variables which were sampled with replicates every 30 minutes. In this experiment, the optimum doses of Na2CO3 and KMnO4 were 300 mg/L and 0.75 mg/L, respectively. The treated water has a pH value of 7.4-8.1, iron concentration 0.25 mg/L with removal efficiency is 93.56%, and turbidity 0.05-0.75 NTU. Thus, it can be said the dependent variables are in accordance with the relevant regulations.Keywords: Activated Carbon, Fe, Filtration, Manganese Greensand, Water Quality ]]>
<![CDATA[Treatment Strategies for Reducing Oil Contaminants in Wastewater ]]>
<![CDATA[Juan Feron Ndruru]]>;
<![CDATA[Ignatia Marlin Pongoh]]>;
<![CDATA[Niken Adelia Agustin]]>;
<![CDATA[Temmy Wikaningrum]]>
<![CDATA[ Jurnal Serambi Engineering Vol 7, No 1 (2022): Januari 2022 ]]>
Publisher : <![CDATA[Fakultas Teknik ]]>
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DOI: 10.32672/jse.v7i1.3816
<![CDATA[The more humans need to develop, the more waste will be generated from by-products of an industry's operational processes. One of the most waste in produce, namely wastewater contaminated by oil. Oil waste not only pollutes aquatic ecosystems but the impact of waste oil itself can be very dangerous for human health. Therefore, it is necessary to process wastewater contaminated with this oil. On the one hand, the development of innovation also makes the methods of processing contaminated waste more varied. Therefore, there is a need for a study to determine which wastewater treatment processes are effective, especially for wastewater that contains oil. This is the background for writing the journal "Treatment Strategies for Reducing Oil Contaminants in Wastewater". The research methodology of this journal itself uses a qualitative method with a literature review approach. So that the results obtained from the comparison of the efficiency of several processing methods such as membrane technology, electrocoagulation, adsorption, and combination. But even so, it still needs to be reworked related to the cost efficiency of each processing method.]]>
<![CDATA[Comparison of Coagulant Dose (Poly Aluminum Chloride) Use in The Water Treatments Process of Kalimalang River ]]>
<![CDATA[Deniela Flora Mariyne Wongso Diharjo]]>;
<![CDATA[Jannie Jannie]]>;
<![CDATA[Wahyu Sekti Retno Permatasari]]>;
<![CDATA[Temmy Wikaningrum]]>
<![CDATA[ Jurnal Serambi Engineering Vol 7, No 1 (2022): Januari 2022 ]]>
Publisher : <![CDATA[Fakultas Teknik ]]>
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DOI: 10.32672/jse.v7i1.3889
<![CDATA[River has a vital role to fulfill the water needs of the community. In the water bodies, the small suspended particles, also known as colloids, with the small weight and stability in the water bodies they have, they cannot be settled or eliminated naturally. There are some concerns regarding colloid removal in Kalimalang river, such as increase in water turbidity resulting the decrease in the river water quality as a water source and disruption of the ecosystem in the river. The experiment used poly-aluminum chloride (PAC) as the coagulant and jar test method which contains coagulation-flocculation process. This aims to determine optimal dosage of PAC to reduce the turbidity and pH value of water sample that relate to the regulation of water quality standard for sanitary hygiene, which is regulated by law No 32 Year 2017. The optimum dose for this experiment is 2 mg/L PAC 0.5 percent as the sample achieved the lowest average of turbidity that is 0.02 NTU with the average of pH is 7, indicating that the sample meets the quality standards of Environmental Health Quality Standards for sanitary hygiene purposes.]]>
<![CDATA[Turbidity Level Prediction Based on Suspended Particle Counting Through Image Processing Approach ]]>
<![CDATA[Temmy Wikaningrum]]>;
<![CDATA[M. Galang Alvasa]]>;
<![CDATA[Yandes Panelin]]>;
<![CDATA[Rijal Hakiki]]>
<![CDATA[ Jurnal Serambi Engineering Vol 6, No 1: Januari 2021 ]]>
Publisher : <![CDATA[Fakultas Teknik ]]>
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DOI: 10.32672/jse.v6i1.2593
<![CDATA[Monitoring of pollutant concentrations in surface water becomes a concern, considering the utilization of surface water as the raw water for drinking water treatment plants (WTP). The fluctuation of pollutant concentrations in surface water can affect the performance of WTP. This research was conducted to assess the potential for turbidity level prediction based on the calculation of the number and surface area of suspended particles through a digital image processing approach. Measurements of the amount and surface area were carried out in the form of laboratory-scale experiments using the open source software ImageJ 1.46r. The algorithm in ImageJ can convert pixels into a number “value” and surface area through a series of digital image processing steps, henceforth compared with the existing measurement method. The results showed that there was a strong correlation between the number of particles and the concentration of formazine suspension (r = 0.9821), but does not apply to the surface area. Referring to the results of laboratory experiments, it can be concluded that the approach to measure the number of suspended particles can be the basis for predicting the turbidity level in the turbidity range 100-800 NTU, but does not apply to the turbidity range 0.02-20 NTU.]]>
<![CDATA[Potensi Penggunaan Eco Enzyme pada Degradasi Deterjen dalam Air Limbah Domestik ]]>
<![CDATA[Efli Pratamadina]]>;
<![CDATA[Temmy Wikaningrum]]>
<![CDATA[ Jurnal Serambi Engineering Vol 7, No 1 (2022): Januari 2022 ]]>
Publisher : <![CDATA[Fakultas Teknik ]]>
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DOI: 10.32672/jse.v7i1.3881
<![CDATA[Environmental pollution is one of the factors causing environmental damage. The environment can accept a certain level of pollutant load and can neutralize it within a certain period. But along with the development of human activities, the amount and level of pollutants are increasing inversely with the capacity of the environment and the ability of the environment to neutralize pollutants. One of the factors causing environmental pollution is domestic wastewater. This research uses orange waste to be processed into the eco enzyme. Making eco enzyme lasts for 3 months. Eco enzyme is made using orange waste, brown sugar, water in a ratio of 3:1:10, and fermentation time is 3 months. This study aims to determine whether the eco-enzyme of orange waste can be used to reduce the concentration of detergent in domestic wastewater. The method used in this research is an experimental method with a laboratory scale. From the experiments carried out, primary data will be obtained. Based on the eco-enzyme characterization of orange waste used, it is known that the concentration of detergent is 0.2534 mg/L. The concentration of detergent in domestic waste is 2.1464 mg/L. The concentration of detergent in domestic waste after added eco-enzyme of orange waste 5% becomes 0.68 mg/L and 10% becomes 0.30 mg/L with a detention time of 7 days.]]>
<![CDATA[HAZARDOUS WASTE SHOULD BE MANAGED PROPERLY FOR DEVELOPMENT OF BETTER WASTE MANAGEMENT STRATEGIES ]]>
<![CDATA[Afina Maulida]]>;
<![CDATA[Aliyah Oktaviani]]>;
<![CDATA[Helen Steavy Pakpahan]]>;
<![CDATA[Temmy Wikaningrum]]>
<![CDATA[ JURNAL PENELITIAN DAN KARYA ILMIAH LEMBAGA PENELITIAN UNIVERSITAS TRISAKTI Vol. 7 No. 2 (2022) ]]>
Publisher : <![CDATA[Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Trisakti ]]>
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<![CDATA[Hazardous waste products and trash disposal methods are vital to society. Over the last few decades, the production of hazardous waste has increased in tandem with population growth, industrialization, increasing urbanization. The constantly increasing industry sector has resulted in the creation of a massive volume of hazardous waste. As a result, enough care must be taken throughout the collection, processing, transporting, and disposal of hazardous materials in order to reduce environmental dangers, as it cannot be disposed of in the environment since it is. That study looks at hazardous wastes, their many types, and how they are managed. Improved strategies for identifying the most convenient and ecologically friendly hazardous waste medication and disposal techniques are required. This document discusses the numerous hazardous wastes created by industry, as well as the nature of those wastes and several methods that can be used for managing the hazardous waste.]]>
<![CDATA[Potensi Pengunaan Eco Enzyme Sebagai Biokatalis Dalam Penguraian Minyak dan Lemak pada Air Limbah Domestik ]]>
<![CDATA[Temmy Wikaningrum]]>;
<![CDATA[Efli Pratamadina]]>
<![CDATA[ Jurnal Serambi Engineering Vol 7, No 4 (2022): Oktober 2022 ]]>
Publisher : <![CDATA[Fakultas Teknik ]]>
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DOI: 10.32672/jse.v7i4.4849
<![CDATA[The surface water quality is getting more attention at this time, given the lower quality in some areas of West Java. Mostly the causes of the decline in water quality is due to the disposal of domestic wastewater. Oil and grease is one of the parameter in domestic wastewater that must be considered. Eco enzyme is made from the anaerobic fermentation of organic waste from fruits and vegetables which has a a versatile performance. The aims of this study is to determine whether eco enzyme made from citrus waste has the potential to be used to degrade the concentration of oil and fat in domestic wastewater. The sample used was artificially made from domestic wastewater samples which were intentionally added to oil and grease so that the initial concentration was 19.82 mg/L. In the sample that had been added 5% eco enzyme, the concentration of oil and grease managed to decrease to 13.84 mg/L after 9 days of observation, compared to that which did not add eco enzyme to 15.93 mg/L. The t Test statistical analysis showed that the oil and grease concentration reduction in the two treatments was significant, but the ANOVA analysis results showed that the two treatments did not differ significantly.]]>
