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All Journal Indonesian Journal of Biotechnology Tropical Aquatic and Soil Pollution Industrial and Domestic Waste Management INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY

Risky Ayu Kristanti

2Dept. of Chemical and Environmental Engineering, Yamanashi University

Author-ID : 444563

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Energy Engineering Environmental Science Immunology & microbiology Materials Science & Nanotechnology

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Municipal Wastewater Treatment Technologies in Malaysia: A Short Review Kristanti, Risky Ayu; Bunrith, Seng; Kumar, Ravinder; Mohamed, Abdelrahim Omar
Industrial and Domestic Waste Management Volume 3 - Issue 1 - 2023
Publisher : Tecno Scientifica Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53623/idwm.v3i1.243

The aim of this study was to evaluate different municipal wastewater treatment technologies for commercial use and develop an optimized system for a case study plant and future plant designs. Municipal wastewater, classified as a low-strength waste stream, can be treated using aerobic and anaerobic reactor systems or a combination of both. Aerobic systems are suitable for low-strength wastewaters, while anaerobic systems are suitable for high-strength wastewaters. Malaysia has actively implemented various wastewater treatment technologies to address the increasing demand for clean water and reduce environmental pollution. Some commonly used technologies in Malaysia include Activated Sludge Process (ASP), Membrane Bioreactor (MBR), and Moving Bed Biofilm Reactor (MBBR). These technologies show promise in removing emerging pollutants, such as pharmaceuticals and personal care products, which are not effectively eliminated by conventional treatment methods. Additionally, Malaysia could consider investing in renewable energy sources like solar and wind to power wastewater treatment plants, thereby reducing reliance on non-renewable energy and supporting sustainable development. It is also important to emphasize continued public awareness and education initiatives to promote responsible wastewater disposal practices and environmental stewardship.

Exploring the Potential of Composting for Bioremediation of Pesticides in Agricultural Sector Lau, Yu Yan; Hernandes, Erika; Kristanti, Risky Ayu; Wijayanti, Yureana; Emre, Mehmet
Industrial and Domestic Waste Management Volume 3 - Issue 1 - 2023
Publisher : Tecno Scientifica Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53623/idwm.v3i1.245

The rapid expansion of the human population has raised the chemical stress on the environment due to the increased demand of agricultural yields. The use of pesticides is the primary contributor to environmental chemical stress, which is essential for agricultural expansion in order to produce enough food to sustain the burgeoning human population. Pesticide residues in soil have grown to be a subject of rising concern as a result of their high soil retention and potential harm to unintended species. Diverse remediation strategies, such as physical, chemical, and biological, for limiting and getting rid of such contaminants have been put forth to deal with this problem. Bioremediation is one of these techniques, which has been deemed the best for reducing pollution because of its low environmental impact, simplicity of operation and construction. Microorganisms are implemented in this technique to break down and get rid of toxins in the environment or to reduce the toxicity of chemical compounds. This study thoroughly analyses the different composting soil remediation methods, including landfarming, biopiles, and windrows, to reduce and eliminate soil pollution. Although biological treatment is the best option for cleaning up polluted soil, it is still important to evaluate and review the approaches over the long term to determine whether they are effective in the field. It is because the reactivity of the microorganisms is highly dependent on environmental parameters, and the contemporary environment is characterised by unpredictable weather patterns, localised droughts, and temperature fluctuations.

Sustainable Technology in Developed Countries: Waste Municipal Management Hoareau, Carol Emilly; Ahmad, Noraziah; Nuid, Maria; Rubiyatno; Khoi, Dao Nguyen; Kristanti, Risky Ayu
Industrial and Domestic Waste Management Volume 1 - Issue 1 - 2021
Publisher : Tecno Scientifica Publishing

As more studies were conducted and global events unfold, a greater emphasis is being placed on the importance of preserving the Earth's natural resources and cycles before we face a catastrophic climate crisis. Thus, developed countries are constantly adapting their policies and legislation to promote green development for the sake of sustainable development, which benefits both the environment and the socioeconomic segment. As populations grow and living standards improve, more waste is generated. Appropriate municipal waste management is necessary to avoid harm to the environment, wildlife, and human health. Sustainable municipal solid waste management is even included in the United Nations' (UN) Sustainable Development Goals, which aim to improve the world's environment and economy. The European Union (EU) member states' waste management systems can be considered exemplary. In some countries, landfills have been prohibited, promoting the use of more sustainable technologies such as organic waste incineration, recycling, and composting. However, a divide exists between member countries, with some lagging behind in terms of waste management strategies. Thus, this paper examined the current state of municipal waste in EU member states, followed by a review of the various disposal technologies implemented. The difficulties and environmental concerns that must be overcome are discussed, as are the recommendations and possible future directions.

Scenario of Municipal Waste Management in Malaysia Liew, Zachary Raphael; Monir, Minhaj Uddin; Kristanti, Risky Ayu
Industrial and Domestic Waste Management Volume 1 - Issue 1 - 2021
Publisher : Tecno Scientifica Publishing

Malaysia has rapidly modernized, with most of the population now residing in cities and the remainder in rural or remote areas. The amount of municipal solid waste generated has increased in tandem with the country's rapid urbanization in response to that statement. Due to a lack of connectivity in rural areas, there may be insufficient infrastructure for a proper waste management system. As a result, illegal waste dumping was common, and landfills' massive volumes of waste may contribute to greenhouse gas emissions. The Malaysian government has responded by taking the necessary steps to upgrade the country's current waste management system in order to better manage municipal solid waste disposal. This research looks at how energy recovery from accumulated waste can be used as a renewable energy source, as well as the current issues, challenges, and proposed solutions. Methane gas produced as a byproduct of waste decomposition in landfills or disposal sites was used to generate electricity more efficiently and sustainably, resulting in a positive economic and environmental outcome.

Biosorption of Synthetic Dye by Macrofungi Lee, Kek Kin; Kristanti, Risky Ayu; Yulisa, Arma; Rubiyatno; Ningsih, Fitria; Syafrudin, Muhammad; Hernandes, Erika; Albescu, Mihaela
Industrial and Domestic Waste Management Volume 2 - Issue 2 - 2022
Publisher : Tecno Scientifica Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53623/idwm.v2i2.108

This research project aimed to provide an environmentally friendly method for the decolorization and biosorption of synthetic dye by utilizing fungi as biosorbents. The study was carried out by first growing the fungi in solid medium and then using the fungi as biosorbent to absorb dye in aqueous solution. In the first stage, screening experiments were carried out among 5 different types of fungi, and Pleurotus ostreatus was determined to have the highest growth rate. The Pleurotus ostreatus was recultivated with Remazol Brilliant Blue R dye to determine its dye removal ability. Pleurotus ostreatus sp. exhibited vigorous dye decolorization in agar medium within 2 days. By carrying out batch analysis, 4 parameters were examined, which were the effect of pH, surfactant concentration (Tween 80), salinity concentration and dosage of biosorbent. The results showed that the maximum dye decolourization by Pleurotus ostreatus can be achieved through establishing an acidic condition of pH 2, addition of 0.1mL of Tween 80, 0mg/l of sodium chloride concentration, and dosage of 8 plugs. Lastly, the experimental data was found to fit the Jovanovic Isotherm the most. In conclusion, Pleurotus ostreatus is capable of decolourizing and adsorbing dye particles in the dye aqueous solution.

Co-Authors Ahmad, Noraziah Albescu, Mihaela Batubara, Ummi Mardhiah Binhudayb, Faisal Saud Bunrith, Seng Chairattanawat, Chayanee Direstiyani, Lucky Caesar Emre, Mehmet Finayeva, Novlina fitria ningsih Hernandes, Erika Hoareau, Carol Emilly Hossain, Ferdaus Mohd Altaf Jannat, Md Abu Hanifa Kasongo, Joseph Khoi, Dao Nguyen Kumar, Ravinder Kusumadewi, Riana Ayu Lau, Yu Yan Lee, Kek Kin Lie, Michael Liew, Zachary Raphael Maragathavalli, S. Mendoza, Rose Ann Mohamed, Abdelrahim Omar Monir, Minhaj Uddin Mtui, Elias Muhammad Syafrudin Nadifah, Gina Navarro, Ariela Rose Nordin, Ahmad Rizal Roslan Nuid, Maria Nurtayeva, Aigerim Rachana, Kong Rakhmonov, Jasur Retno Wulandari Reyes, Juan Carlos Rose Tirtalistyani Rubiyatno Ruti, Annisa Andarini Safitri, Lisma Santiago, Denny Noriel Sarykova, Aizada Tang, Yien Yu Thao, Nguyen Thi Thanh Tony Hadibarata, Tony Varghese, Diya Merlin Wijaya, Nicholas Albert Wijayanti, Yureana yati, indri Yulisa, Arma

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