Journal of Sustainable Development Science

Simple Prototype Design of Phytoremediation Installation in Small Pilot Scale of Acid Mine Drainage Passive Treatment

Arif Umami, Ni Kadek Ema Sustia Dewi, Ade Faris Mu'taz, Ja'far Taufik Amin — Sun, 30 Jun 2024 03:42:05 +0800

Phytoremediation is usually applied to passively treat Acid Mine Drainage (AMD) by constructing a wetland. To increase the success of the AMD treatment method, laboratory trials were carried out on a pilot scale, and the experimental results were applied on an actual scale. Therefore, a simple design will be prepared for this research that replicates the wetland work system. This research aimed to produce a prototype that could be used for initial testing of phytoremediation on a smaller scale before being applied to field conditions. The installation design was created using Adobe Illustrator software. The trial lasted two months, using modified acid water and flowing it periodically as controlled droplets via an infusion tap into the media that used Typha sp and Pistia stratiotes L as phytoremediator agents. This equipment was tested with three acidity levels, 4, 5, and 6, repeated twice for two months. Results showed that the prototype was built using three buckets arranged in layers, each with its function. The phytoremediation process had successfully occurred in this study, and installation was suitable to support the process. There was a change in AMD acidity around the plants for five weeks and an increase in acidity the fourth week after treatment at the outlet. It could be seen that AMD with lower acidity levels resulted in greater plant damage in the sixth week, but Typha sp still showed resistance to an acidic environment.

The Implementation of Surcharge Charging By Merchants in Non-Cash Transactions at the Representative Office of Bank Indonesia Bali Province

A.A. Sagung Ngurah Indradewi, Made Tamar Martayasa — Sun, 30 Jun 2024 03:40:26 +0800

This research aims to determine the application of additional fees charged by merchants in non-cash transactions in the Legal Area of the Bali Province Bank Indonesia Representative Office and how the Bali Province Bank Indonesia Representative Office supervises merchants in payment transactions via EDC machines regarding the action of charging fees. addition. Types of empirical legal research. The data collection method uses interview techniques.

The results of the research on the implementation of surcharge charges by merchants in non-cash transactions are that there are charges carried out by merchants, because the authority of the Bank Indonesia Representative Office is limited to preventive enforcement, repressive law enforcement in the form of administering administrative sanctions can only coordinate with the Bank Indonesia Representative Supervision Office against merchants. in payment transactions via Bank Indonesia's central EDC machine if there is a report from a disadvantaged party. Supervision of Bank Indonesia Representative Offices on merchants in payment transactions via Electronic Data Capture (EDC) machines related to the action of imposing surcharges in the form of providing socialization, education and administrative witnesses in the form of terminating the Cooperation relationship to the party providing the EDC, ordering the merchant to return funds in the amount of the transaction value which indicates the existence of a charge subcharge fees as a form of protection for consumers if there are consumers who report experiencing losses using debit cards.

Business Development Strategy for Bunga Melati Women’s Farming Groups in Bunutin Village, Bangli District, Bangli Regency

Putu Zanes Costalina Ge’i, Ni Wayan Sri Astiti, Putu Udayani Wijayanti — Sun, 30 Jun 2024 03:37:14 +0800

This research aims to find out the right strategy for business development of the Bunga Melati Women's Farming Group (WFG) in Bangli Regency. The data collection method uses observation, interviews, documentation and Focus Group Discussion (FGD). The respondents in this research were all members of the Jasmine Flower Farming Women's Group, totaling 28 people. The data analysis used in this research is internal and external environmental analysis. The research results show that Bunga Melati WFG has a total IFAS score of 2.87, and an IFAS score of 2.87. The alternative strategy produced by Bunga Melati WFG is 1. Utilizing product diversity and superior quality to expand the scope of product promotion and branding. 2. Study new technological developments to improve efficiency and product quality. 3. Improving the quality of human resources through training and education programs to understand business administration management and also online marketing supported by new technology. 4. Strategy for using digital technology to increase product promotion and branding. 5. Improve product quality to face tight competition and high consumer bargaining power. 6. Product quality-based differentiation strategy by controlling product costs to increase consumer purchasing power. 7. Strategy for understanding customer needs in order to improve product quality. 8. Strategy for developing human resources and increasing competitiveness amidst intense competition and high consumer bargaining positions.

Percentage Attacks of Plutella xylostella and Parasitization of the Parasitoid Diadegma semiclausum on Cabbage in Kintamani District

Dicky Marsadi, Dewa Ayu Ari Febriyanti — Sat, 29 Jun 2024 07:03:18 +0800

Cabbage plants are one of the horticultural commodities that many farmers cultivate in Indonesia because they have economic value, because apart from being able to meet domestic needs, cabbage also has the opportunity to become an export commodity. This study aims to determine the percentage of attacks by the cabbage leaf caterpillar Plutella xylostella and the level of parasitization of the parasitoid Diadegma semiclausum in Kintamani District. This research was carried out in Sekaan Village and Kedisan Village. The research method uses a survey method. Sampling of cabbage plants in the field was carried out diagonally so that 5 sample points were obtained, 10 plants were observed at each sample point. The research results showed that the percentage of P. xylostella pest attacks in Sekaan Village and Kedisan Village ranged from 12% to 28%. The average population of P. xylostella larvae in Sekaan Village ranges from 0.98 individuals/plant to 1.82 individuals/plant and the highest average population of P. xylostella larvae in Kedisan Village ranges from 0.7 individuals/plant to 1.66 individuals/plant. The level of parasitization of the parasitoid D. semiclausum in Sekaan Village ranges from 32% to 56% and the level of parasitization of the parasitoid D. semiclausum in Kedisan Village ranges from 24% to 48%. The highest peak of parasitization was found in the fourth observation (4 WAP).

The Effect of Service Quality on Financial Performance and Satisfaction of Cooperative Members in Gianyar Regency

Ni Nyoman Alit Purnami, I Ketut Suamba, Ratna Komala Dewi — Sat, 29 Jun 2024 07:04:08 +0800

This study aims to determine the effect of service quality on financial performance and member satisfaction as well as the level of profitability in Amertanadi Farmer Cooperative and Lumbung Sari Farmer Cooperative. The data collection method uses the interview method with a questionnaire as the main instrument in the research. The sample used in this study were members or family members of the Amertandi Tani Cooperative totalling 81 respondents and members of the Lumbung Sari Tani Cooperative totalling 86 respondents. The research data were obtained from the results of filling out the questionnaire and analysed using SEM analysis techniques with the help of the SmartPLS program. The results of this study indicate that service quality (tangible, reliability, responsiveness, assurance and empathy) has a positive and significant effect on financial performance and financial performance has a positive and significant effect on member satisfaction, based on the results of the study, it is hoped that the Amertandi Farmer Cooperative and Lumbung Sari Farmer Cooperative will be able to improve service quality so that members feel very satisfied.