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All Journal Jurnal Sains & Teknologi Lingkungan Serambi Engineering Analit: Analytical And Environmental Chemistry
Arseto Yekti Bagastyo
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Chemistry Computer Science & IT Earth & Planetary Sciences Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering

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Socio-economy analysis of the community in Kediri City on the implementation of restriction policy of single-use plastic usage Tarnada Zanuar, Ella Arlaydes; Arseto Yekti Bagastyo
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The increasing use of single-use plastics in Kediri City prompted the issuance of Kediri Mayor Regulation No. 30 of 2023 on restricting single-use plastics. This study analyzes plastic waste composition, community and business participation, and the factors influencing policy implementation. Plastic waste composition was measured using the quarter sampling method in three districts, while participation data were analyzed using Structural Equation Modelling (SEM-PLS). The results show that plastic bags dominate single-use plastic waste, contributing up to 90%, particularly in residential areas due to small business activities. Support for the policy is relatively high, with 74.46% of the community and 64.64% of businesses agreeing, but concrete implementation remains low. SEM-PLS analysis reveals that environmental awareness, knowledge, and attitudes significantly influence the reduction of single-use plastics, while economic income factors are not significant. Continuous education, the provision of eco-friendly alternatives, and collaboration among stakeholders are essential to enhancing policy effectiveness.
Studi Pemanfaatan Idle Capacity Instalasi Pengolahan Lumpur Tinja (IPLT) Keputih Surabaya Nurhayati, Ervin; Arseto Yekti Bagastyo; Cynthia Dyah Puspitasari; Joko Pramono; Fathyah, Fathyah; Rahayu, Dewi Puji; Subechi, Dya Nur Mangzila
Jurnal Sains dan Teknologi Lingkungan Vol. 16 No. 2 (2024): SAINS & TEKNOLOGI LINGKUNGAN
Publisher : Teknik Lingkungan Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jstl.vol16.iss2.art6

Abstract

IPLT Keputih, the only fecal sludge treatment plant in Surabaya City, plays a critical role in the city's sanitation infrastructure. Its operation is critical to manage the fecal sludge generated by Surabaya residents, ensuring that the effluent is effectively treated before being safely discharged to the environment. According to previous studies, IPLT Keputih still has significant untapped potential, especially in the Solid Separation Chamber (SSC) and Grease Trap (GT) units, which have idle capacity that can be optimized to improve overall efficiency. The study involved primary and secondary data collection. Primary data was collected through comprehensive field observations and measurements, while secondary data was obtained from relevant agencies. Data analysis showed that IPLT Keputih currently treats an average of 97.71 m3 of septage per day. However, the facility has an idle capacity of 139.89 m3/day, which indicates a great opportunity to improve utilization. The calculation of the existing idle capacity was conducted based on the maximum discharge of sludge entering the IPLT Keputih in 2022. Several scenarios were developed to fully utilize the idle capacity of the SSC and GT units. The scenarios include the optimization of the SSC unit through improved desludging services, the optimization of the SSC and GT through improved non-fecal sludge management services for restaurants, as well as the implementation of a blended approach to improve the overall service of IPLT Keputih.
REMOVAL OF NAPTHOL DYE FROM BATIK WASTEWATER USING CHITOSAN FROM BLACK SOLDIER FLY PUPAL EXUVIAE Putri Rayhani Rahmania; Arseto Yekti Bagastyo
Analit : Analytical and Environmental Chemistry Vol. 9, No. 01 April (2024) Analit : Analytical and Environmental Chemistry
Publisher : Jurusan Kimia FMIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/analit.v9i01.191

Abstract

This research discussed about the application of chitosan from black soldier fly (BSF) pupal exuviae as an adsorbent in the adsorption of napthol dyes in batik wastewater. The adsorption process was carried out in batch process with the aim of analyzing the dye removal efficiency and adsorption capacity as affected by solution pH and adsorbent dosage, as well as determining the appropriate adsorption kinetics model to be applied. Changes in dye concentration were analyzed for absorbance using a spectrophotometer. The results of the adsorption process research showed that the optimal pH and adsorbent dose were at pH 4 and 0.4 g/L with removal efficiency reaching 92%. The removal efficiency decreased with increasing pH. The increasing amount of adsorbent, the removal efficiency decreased. However, after reaching the optimal dose, the addition of chitosan mass no longer gave a significant increase in the removal efficiency, indicating that the saturation point had been reached. The adsorption process tends to follow a pseudo second-order kinetics model with a maximum adsorption capacity of 344.82 mg/g.
Co-Authors Cynthia Dyah Puspitasari Dewi Puji Rahayu Ervin Nurhayati, Ervin Fathyah, Fathyah Joko Pramono Putri Rayhani Rahmania Subechi, Dya Nur Mangzila Tarnada Zanuar, Ella Arlaydes