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All Journal Envirous Moneta : Journal of Economics and Finance
Lestari , Putri Ayu
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Chemical Engineering, Chemistry & Bioengineering Economics, Econometrics & Finance Engineering Environmental Science Industrial & Manufacturing Engineering Public Health

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Penurunan Kekeruhan dan TSS Air Sungai dengan Memanfaatkan Koagulan dari Cangkang Keong Sawah (Pila Ampullacea) Lestari , Putri Ayu; Purnomo, Yayok Suryo
Envirous Vol. 3 No. 2 (2023): Jurnal Envirous
Publisher : UPN "Veteran" Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/envirous.v3i2.7

Abstract

Cangkang keong sawah (Pila ampullacea) dapat menjadi limbah bagi lingkungan karena tidak dapat diolah dan dimanfaatkan lebih lanjut, namun dapat diekstraksi agar dapat digunakan sebagai koagulan. Penelitian ini bertujuan untuk mengetahui efektivitas ekstrak yang berasal dari cangkang keong sawah sebagai koagulan melalui proses pengolahan air koagulasi-flokulasi dan mengetahui perbedaan signifikan pada setiap parameter uji. Penelitian ini merupakan penelitian eksperimental dengan menggunakan variasi dosis koagulan yaitu 50, 100, 150, 200 dan 250 mg/L. Pada penurunan presentase kekeruhan koagulan cangkang keong sawah sebesar 83-96,42% sedangankan koagulan sintesis PAC sebesar 85-99%. Pada tingkat keasaman (pH) koagulan cangkang keong sawah 7.2-7.9 sedangkan pH koagulan sintesis PAC 6.8-7.5, keduanya masih dalam range 6-9.
Carbon Pricing as a Climate Policy Instrument: Global Lessons, Challenges, and Future Directions Rismanto, Hilman; Lestari , Putri Ayu
Moneta : Journal of Economics and Finance Vol. 3 No. 3 (2025): July 2025
Publisher : Indonesian Scientific Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61978/moneta.v3i3.928

Abstract

Carbon pricing has become a central instrument in global strategies to mitigate climate change, yet its economic, social, and environmental implications remain contested. This study provides a narrative review synthesizing literature from Scopus, Web of Science, and Google Scholar to evaluate the effectiveness of carbon pricing mechanisms. Keywords including carbon tax, emissions trading systems, carbon pricing mechanisms, and economic implications guided the selection of peer-reviewed studies published between 2000 and 2025. Inclusion criteria focused on research addressing economic growth, innovation, social equity, and environmental outcomes across developed and developing contexts. Results show that carbon pricing fosters green innovation, reduces emissions in energy and transport, and generates fiscal revenues that can finance social and environmental programs. However, outcomes vary significantly: industries with high resource dependence face cost burdens, low-income households are disproportionately affected, and developing countries struggle with institutional weaknesses and carbon leakage. Comparative analysis demonstrates that both carbon taxes and cap-and-trade systems can be effective when complemented by redistributive mechanisms, strong institutions, and integration with broader policy frameworks. The discussion highlights systemic political, economic, and institutional factors that influence success and identifies gaps in longitudinal and social impact research. Findings suggest that well-designed carbon pricing can balance mitigation and equity objectives, but future research must expand comparative analyses and explore hybrid policy models. The study underscores carbon pricing as an indispensable yet context-sensitive tool for achieving sustainable low-carbon transitions.
Co-Authors Purnomo, Yayok Suryo Rismanto, Hilman