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INDONESIA
Waste Technology
Published by Universitas Diponegoro
ISSN : -     EISSN : -     DOI : -
Core Subject : Science, Education,
Computer Science & IT Other
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Articles 4 Documents
 1 
Search results for , issue "Vol 8, No 2 (2020)" : 4 Documents clear
DUST AND GENDER RELATED WITH LUNG VITAL CAPACITY DISSORDERS IN THE TEXTILE INDUSTRY SPINNING SECTION Iwan Suryadi; Maria Paskanita Widjarnarti; Aditama Putra Nugraha; Hashfi Hawali Abdul Matin
Waste Technology Vol 8, No 2 (2020)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/8.2.30-33

Abstract

Objective: Many factors affect lung function capacity in textile industry workers. This research aims to determine the factors that affect the vital role of pulmonary spinning workers in the textile industry. Methods: This research used an analytic observational research design with a cross-sectional approach. Sampling technique used total sampling and get the sample was 96 people, and measurement of lung vital capacity used spirometry. The Low Volume Sampler was applied to measure dust concentration, and the questionnaire was used to assess the individual characteristics. Results: Bivariate analysis of the variables is the working environment dust, and gender are significant. The result of multivariate analysis of dust is the most significant to the lung vital capacity. Conclusion: dust concentrations is classified above the Threshold Limit Value (TLV), so the company should to control the source of dust exposure.Keywords: lung vital capacity
The Impact of Pesticides Use on Farmer Health and Environment Hargianti Dini Iswandari; Ari Dina Permana Citra; Okti TD Retnaningrum; Sigit Sugiharto; Chusnul Zulaika
Waste Technology Vol 8, No 2 (2020)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/8.2.25-29

Abstract

Pesticides are supporting component in agricultural sector. However, the excessive use of pesticides can have negative impacts on the health of farmers and the environment. This research was conducted in Kebonagung village, Sumowono sub-district to determine the impact of pesticides on health and the environment. The study population was vegetable farmers in Kebonagung Village, Sumowono District. The sample selection technique used purposive sampling method. In-depth interviews were conducted with 10 vegetable farmers and data triangulation was obtained through interviews with the Village Head of Kebon Agung. The results showed that farmers' knowledge was still lacking, farmers did not have awareness of the importance of using personal protective equipment when applying pesticides, pesticide control was carried out once every 6 months but not all farmers received this supervision. The impact of pesticides on health and the environment in Kebonagung village is still relatively light but there are indicators of an imbalance in the ecosystem due to excessive use of pesticides
FEASIBILITY OF BIOETHANOL PRODUCTION FROM ROTTEN TOMATOES (Solanum Lycopersicum) USING SACCHAROMYCES CEREVISIAE Janet Appiah Osei
Waste Technology Vol 8, No 2 (2020)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/8.2.%p

Abstract

The study aimed at optimizing different fermentation conditions for bioethanol production using rotten tomatoes (Solanum lycopersicum). Rotten tomatoes were collected from sellers at Nairobi market, Kenya for six months and analysed after each time of collection in Kenyatta University Laboratory. They were physically pre-treated and enzymatic hydrolysis was performed using commercial cellulase from Aspergillus niger. Fermentation was carried out using pure culture of Saccharomyces cerevisiae (baker’s yeast). Fermentation variables were optimised at different incubation times of (24, 48, 72, 96, 120 and 144 hours) and temperatures (20oC, 25oC and 30oC). Concentration (%/v/v) of bioethanol at the end of each fermentation time was determined by the use of colorimetric method and residual sugar was determined using DNS method by Miller. Maximum bioethanol percentages of (0.17%) and (0.16%) were achieved at 24 hours and 30oC respectively. Thus, the optimum conditions for maximum bioethanol production in the study were fermentation time of 24 hours and temperature 30oC. The study results have proved the effectiveness of producing bioethanol from rotten tomatoes using baker’s yeast for fermentation.
Towards Urban Zero-waste Community through Bulk Stores: Challenges and Opportunities Mada Sophianingrum
Waste Technology Vol 8, No 2 (2020)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/8.2.39-44

Abstract

Zero-waste is a recent phenomenon which is one of the most cost-effective local solution to handle some of the environmental, social and economic challenge in urban area. Urbanization and rising populations will affect the increase in consumption, which in turn will also increase waste production in urban areas. In 2020, it was noted that 24 percent of waste in Indonesia had not been processed properly. Thus, the waste management approach needs to prioritize not only through a qualified technology system but also needs to be supported by the transformation of people's behavior, one of which is through zero-waste. Bulk store is an urban initiative that applies the concept of zero-waste. This shop combines social and entrepreneurial concepts as well as the environment in carrying out its business processes. Through the concept of zero-waste, people must bring their own containers to shop here. This study aims to examine the opportunities and challenges of bulk store as an initiative to achieve zero-waste communities in urban areas. The method used in this research is qualitative approach through interviews and observations with shop owners, consumers and networks. The results obtained from this study are that education is the main factor determining the success of the bulk store. Apart from that, bulk stores also have another role, namely as a market-hub for local producers around urban areas. This makes bulk stores have a strategic role in supporting the zero-waste community

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