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Waste Technology
Published by Universitas Diponegoro
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Core Subject : Science, Education,
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Articles 5 Documents
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Search results for , issue "Vol 9, No 2 (2021)" : 5 Documents clear
Community Awareness and Willingness to Participate in Electronic Waste Management: A Case Study of the District Banjarsari, Surakarta Hashfi Hawali Abdul Matin; Timothy Jeffrey Walter Hutauruk; Ivo Solikhah; Novania Cantika Widagdo; Rony Bayu Paddy EL Maestro Setianto; Salma Ardelia Darmastuti; Thalita Aldila Pramitasari
Waste Technology Vol 9, No 2 (2021)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/9.2.14-22

Abstract

Hazardous and toxic waste is the residue of a business or activity containing hazardous and toxic materials which due to their nature and concentration or amount, either directly or indirectly pollute or damage and endanger the health of the environment. This study examines the awareness and willingness of the community in the management of electronic waste in Banjarsari District, Surakarta. The objectives of this study are: (i) Knowing the level of awareness of the people of Banjarsari District regarding electronic waste management; (ii) Knowing the level of willingness of the people of Banjarsari District to participate in electronic waste management; and (iii) Provide recommendations for electronic waste management in Banjarsari District. The research method uses a qualitative descriptive approach that prioritizes descriptive data, observations, and interpretations. The technique of collecting data is through primary data obtained from surveys or questionnaires to the people of Banjarsari District and secondary data derived from related literature. The results showed that the level of awareness and understanding of the electronic waste management of the people of Banjarsari District was quite good. The people of Banjarsari District have a high level of willingness to participate in waste management but are reluctant to incur additional costs due to economic and social problems. Recommendations are applied in the management in Banjarsari District by collecting, picking up electronic waste, and collaborating with third parties such as PT. Arah Environmental Indonesia.
Employing Watermelon rind, Polyurethane Sponges, and Cotton fibers as Bio-carriers mohammed mansour
Waste Technology Vol 9, No 2 (2021)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/9.2.23-28

Abstract

Water scarcity in Egypt is a critical issue that threats all the life fields such as industry and agriculture sectors. So, searching for alternative water resources was the key solution by depending on treating dairy wastewater in order to provide sufficient treated water enough to reuse in other fields. Integrated fixed film activated sludge process (IFAS) was employed as a biological treatment process. A laboratory pilot was established as a simulation of the biological treatment process. The laboratory pilot consists of primary sedimentation tank, aeration tank, and final settling tank with dimensions of 50 × 25× 25 cm for each. Three bio-carriers were used as IFAS Media with different filling ratio in order to achieve COD, BOD, TN, and TP removal efficiency. Watermelon rind was used in the first experimental trial, then Polyurethane sponges in the second experimental trial, and Cotton fibers in the third experimental trial. After analyzing the physicochemical characteristics of dairy wastewater samples, it was clear that Cotton fibers was the most effective in removing BOD, BOD, TN, and TP concentrations with removal efficiency of  88.35%, 88.3%, 76 %, and 69.3% respectively.
Hazardous and Toxic Waste Management Analysis at UNS Hostpital Indonesia Hashfi Hawali Abdul Matin; Ardhitya Rio Febrian; Aini Mar’atush Sholekha; Asih Kinanthi; Frista Ananda Rizky; Berlian Warit Amalia; Damayanti Miftachus Sholichah; Yhagie Titis Wis Dhinanti
Waste Technology Vol 9, No 2 (2021)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/9.2.29-36

Abstract

National development is increasing every year driven by infrastructure development in all fields including hospitals. Hospitals and health care facilities produce B3 waste that enters the environment through soil, water, air, and biota media. The UNS Hospital is a hospital with service types A, B, and C located in Kartasura District, Sukoharjo Regency, Central Java, Indonesia. The method used in this study observation and interviews. The data collected is for B3 waste management which includes reduction and sorting, storage, transportation, and processing. The data obtained were than analyzed descriptively and compared with Permenkes No. 7 of 2019 regarding hospital environmental health and Government Regulation No. 22 of 2021 regarding environment management. Basically, there are 2 types of waste generated by UNS Hospital, namely medical and non-medical. Currently, UNS Hospital distinguishes waste into 2 types, namely Covid and Non-Covid. There are 6 stages of waste management in UNS Hospital, namely as follows. Sorting is carried out in each ward or treatment room by sorting waste according to its type. Waste packaging, safety box provided. The collection is by sorting the waste put into the trash and then transported by Cleaning Service in a special trolley and collected at the TPS. Storage of medical waste 1-2 days while non-medical 1 year. The transportation and processing of waste is carried out by a third party. Hazardous and toxic waste is one of the materials that requires special handling. The agency that will handle B3 waste must have permit or certification related to the management carried out. UNS Hospital is a health care agency that participates in producing B3 waste with good waste management according to existing regulations.
A Review on Biomedical Waste Management Shridhar Shrimant Bagali; Bychapur Siddaiah Gowrishankar; Sachin Shrimant Bagali
Waste Technology Vol 9, No 2 (2021)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/9.2.1-5

Abstract

With the growth of healthcare facilities, the amount of biomedical waste produced every day is growing. If biomedical waste management is done correctly, many of the problems can be avoided. Segregation, storage, processing, transportation, and disposal of biomedical waste are all common practices undertaken as part of health care waste management. It involves interdisciplinary relationships in organizational, planning, administrative, financial, engineering, legal, and human resource creation. Medical waste management necessitates dedication from healthcare providers at all levels. The risks and value of their "contribution" are feared in a system run by reckless and untrained personnel. Also trained medical professionals, such as hospital managers, private and governmental institutes, clinics, and universities, need to be taught about the rules for disposing of biomedical waste. The importance of biomedical waste, its interaction with the ecosystem, the environmental pollutants used in the health care industry, and the effect of callousness on public health are all topics that are still largely unknown. To achieve better results, we must raise the level of training and education in biomedical waste and environmentally sustainable health care as quickly as possible, while adhering to all applicable rules and regulations.
Effect of cement kiln dust, lime and fly ash on metal leaching characteristics of oil sands tailings from Alberta, Canada Mohsen Saeedi; Mahmoud Mahmoud
Waste Technology Vol 9, No 2 (2021)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/9.2.6-13

Abstract

The oil sands industry of Alberta generates huge amounts of tailings in a slurry form that typically require up to 40 years to consolidate in very large tailings ponds which are up to 150 m in height.  Cement kiln dust (CKD), a byproduct of the ordinary Portland cement manufacturing process, as well as lime and fly ash, collectively referred to as geopolymers, may have the potential to reduce the tailings slurry consolidation period from 40 years, thus affecting the sustainability of such tailings facilities.  However, first, it must be demonstrated that these geopolymers will also decrease the metal leaching from thickened tailings (TT) and mature fine tailings (MFT) from the oil sands industry. This study was focused on the use of geopolymers to reduce the environmental impact of TT- and MFT-tailings in the Alberta oil sands industry. Toxicity characteristics leaching procedure (TCLP) and static leaching test (SLT) was used to examine the leaching of metals from tailings, with the SLT test effectively mimicking the leaching process in the tailings ponds environment. Under non-acidic conditions corresponding to the SLT test results, iron concentrations with values of about 530-705 ppm were found to be lower than previous studies on oil sand tailing ponds (2400 ppm).  Results showed that geopolymer amendment of TT and MFT significantly reduced the leaching of heavy metals.  SLT tests showed that amendment of MFT with 7% CKD decreased Pb, Mn, and Fe leaching, whereas TT-amended with 4% CKD decreased Cu, Pb, Zn, Mn, and Fe. Overall, the CKD amendment of TT showed more than 95% efficiency in the reduction of leaching of all heavy metals.  In TCLP tests, TT-amended with 2% FA decreased the leaching of Pb and Ni to acceptable levels with substantial efficiency in reducing the leaching of Fe, Cu, and Zn. TCLP tests also showed that among different amendments, TT-amended with 4% CKD or 2% FA were the most effective proportions for controlling metal leaching from TT, while MFT-amended with 7% lime/FA or 3% CKD were the effective proportions for reducing metal leaching from MFT. Thus, it is deduced that CKD at 3%-4% w/w amendment would work best for reducing leachate levels of both TT and MFT.  While amendment of tailings by means of a combination of fly ash and lime also were effective in reducing the leaching of metals, these two geopolymers were not as effective as the CKD amendment. 

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