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Astri Rinanti
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Department of Environmental Engineering Faculty of Landscape Architecture and Environmental Technology Universitas Trisakti, Jakarta Gedung K, Kampus A Jl. Kyai Tapa Grogol Jakarta 11440, Indonesia
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INDONESIA
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY
Published by Universitas Trisakti
ISSN : 25799150     EISSN : 25799207     DOI : https://dx.doi.org/10.25105
Core Subject : Science, Agriculture, Social, Engineering,
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Energy Environmental Science
The scope of the journal emphasis not limited to urban environmental management and environmental technology for case study in Indonesia and for other region in the world as well. Urban Environmental Management: environmental modeling, cleaner production, waste minimization and management, energy management and policies, water resources management, water supply and sanitation, industrial safety and health, water recovery and management, urban environmental pollution-diseases and health status, eco-drainage, flood risk management, risk mitigation, climate change and water resource adaptation. Environmental Technology: energy efficiency, renewable energy technologies (bio-energy), environmental biotechnology, pollution control technologies (wastewater treatment and technology), water treatment and technology, indigenous technology for climate change mitigation and adaptation, solid waste treatment and technology
Arjuna Subject : Ilmu Lingkungan (semua ketegori) - Teknik Lingkungan
Articles 14 Documents
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Search results for , issue "Volume 2, Number 1, October 2018" : 14 Documents clear
Adsorption for Lead Removal by Chitosan from Shrimp Shells Pratiwi, Ratih; Prinajati, PS Dyah
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Volume 2, Number 1, October 2018
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v2i1.3554

Abstract

Aim: The objective of this study is to obtain the optimum efficiency of Lead (Pb) removal by adsorption using shrimp shells chitosan. Adsorption is one of the alternative ways to treat heavy metal. Various substances can be used as adsorbents for the adsorption process. One of the natural adsorbents that can be utilized is shrimp shells. Methodology and Results: In general, the process of making chitin into chitosan includes demineralization with dilute HCl, deproteinization with dilute NaOH, then deacetylation of chitin using concentrated NaOH. This study would demonstrate the adsorption on artificial waste containing 100 mg/L of Pb using 1 gram of chitosan with variations in pH (4, 5, 6) and time (30, 60, 90 minutes) to determine the effectiveness of chitosan made of shrimp shells in reducing Pb concentration. The results show that the highest removal efficiency of lead was achieved at pH 4 and 90 minutes duration with a removal percentage of 99.88%. Conclusion, significance, and impact study: Chitosan compounds as the results of shrimp shells processing have amine groups (NH2) which are nucleophiles (rich in electrons). It is favorable to be used as biocoagulants or bioadsorbents of lead heavy metal with a removal efficiency of above 90%.
Management Optimization of Cipanunjang-Cileunca Reservoir in Bandung Regency Using Discrete Markov Methods Marselina, Mariana; Sabar, Arwin; Sari, Iin Pratama
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Volume 2, Number 1, October 2018
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v2i1.3555

Abstract

This research discusses about intake Cikalong as water resource infrastructure supplying water for PDAM Bandung City and PDAM Bandung Regency that depend on the operational of Cipanunjang Dam-Cileunca Dam, Plengan Hydropower, Lamajan Hydropower, Cikalong Hydropower and water from Cisangkuy River. Nowdays, capacity of PDAM Bandung city is 1800 L/sec and capacity of PDAM Bandung Regency is 500 L/sec. However, the amount of water that could be provided by PDAM Bandung City is 1400 L/sec while PDAM Bandung Regency is 200 L/sec. Aim: Optimization on upstream infrastructure is needed to make sure the quantity of water being supplied sufficient. Methodology and Result: There are some methods that can be used to fulfill that aim, on this research use Stochastic Markov Method. The optimization of the reservoir is achieved by the condition of the guideline track and the actual trajectory approaching 1, which means the absence of wasted water through the spillway but through the reservoir utility function for turbine demand, irrigation raw water and raw drinking water in the downstream. The comparison between trajectory and actual trajectory of Cipanunjang Reservoir is 0.861 while for optimization of Cileunca Reservoir is 0.827. Conclusion, significance and impact study: The correlation between the actual (historical) discharge and the Markov estimation discharge on the Cipanunjang-Cileunca Reservoir is closed to 1, so it can be show that the discharge estimation is conceptual because it corresponds to the actual condition (actual discharge).
Heat Transfer Analysis and Water Quality in Saline Water Desalination Using Solar Energy in Vacuum Condition Kusumadewi, Riana Ayu; Notodarmodjo, Suprihanto; Helmy, Qomarudin
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Volume 2, Number 1, October 2018
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v2i1.3556

Abstract

The continues deficiency of consumable water is a significant issue in developing countries, and contaminated water can result in various diseases, which are often lethal. Solar desalination seems to be a promising method and alternative way for supplying fresh water. Aim: The aim of this research is to study heat transfer in desalination system and the quality of feed water, distilled water and brine compared to the quality standard. Feed water consists of salinity 12‰ and 38‰ salinity. Methodology and Result: At first, initial characterization of feed water was conducted, then temperature on fourteen points was measured using thermocouples and thermometer so heat transfer rate can be calculated. After that, the final characterization of water production was conducted. From the  observation, it was found that evaporative heat transfer for vacuum pressure of -0.05, -0.1, -0.15, -0.2, -0.25, and -0.3 bar respectively were 173.77, 180.07, 190.79, 481.66, 242.57, and 246.24 W/m2. The result of water quality test of distilled water produced from saline water desalination for some parameters respectively were pH 7.4; turbidity 2.73 NTU; TDS 27.45 mg/L; chloride 84.98 mg/L; Fe 2.13 mg/L; total hardness 0.1698 mg/L; and Escherichia coli 12 cell/mL . Conclusion, significance and impact study: It can be concluded that distilled water produced by desalination system was met drinking water quality standard according to Minister of Health Regulation No. 492 of 2010.
Multi-Criteria Analysis for Selecting Solid Waste Management Concept Case Study: Rural Areas in Sentani Lake Region, Jayapura Alfons, Alfred Benjamin; Padmi, Tri
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Volume 2, Number 1, October 2018
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v2i1.3557

Abstract

Aim: This study aims to identify, develop, and determine the most suitable concept of solid waste management to be applied in Ifale Village, Yobeh Village, Putali Village, Atamali Village, and Asei Besar Village. Until now, the application of solid waste management system in Jayapura is still far from what people expected since it has been unable to serve the communities who live in rural areas on the islands around Sentani Lake. As a result, 12,554.38 liters/day of solid waste generated by the community in these regions is left untreated. Methodology and Results: The study is using the Analytic Hierarchy Process (AHP) method. The AHP calculations show that the idea of handling solid waste in an integrated treatment facility—following the initial sorting on the household scale—has the highest priority weight (2.05) compared to the other alternatives. Hence, it has been chosen as the best solid waste management concept that can be applied to the study sites. Based on the results as well, the main criteria to be considered include the environmental aspects, social aspects, and technical aspects with each weighing value of 0.534, 0.186, and 0.147, respectively. Conclution, significans and impact study:  The sub-criteria with the highest priorities to be considered in making the decision are the soil pollution (due to produced leachate), air pollution (potentially in the form of stench and gas emissions), the transmission of disease vectors, public participation, and the operational convenience.

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