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All Journal Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Nusantara Science and Technology Proceedings
Triswanti, Dina Riska
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Economics, Econometrics & Finance Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology

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Socialization and Training on Making Compost Fertilizer at Al-Azhaar Islamic Vocational School Tulungagung from Organic Waste Faizah, Rohmatul; Deviyanti, Nur Qomariyah; Triswanti, Dina Riska; Suprapto, Ekafianda Azzhara
Nusantara Science and Technology Proceedings 8th International Seminar of Research Month 2023
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2024.4108

Abstract

Organic waste is leftover material or rubbish that can be recycled and comes from living creatures, such as food waste, waste from living creatures, or plant waste. Research shows that organic waste can be useful as compost which can be used as plant fertilizer and soil fertilizer. This activity was carried out at the Islamic Boarding School Innovation Thematic KKN activity at Al-Azhaar Islamic Boarding School, Tulungagung. The tools and materials used in socialization and training activities are compost bags, measuring cups, latex gloves, dry leaves, vegetable waste and water. Socialization and training activities are carried out in stages, namely preparing the location as well as the tools and materials that will be used. The location used in this activity is the Al-Azhaar Islamic Vocational School field in Tulungagung. Student and female representatives came forward to practice making compost according to the example given. Question and answer session by students of Al–Azhaar Islamic Vocational School, Tulungagung. The aim of carrying out socialization and training on making compost from organic waste is so that students and students of the Islamic Vocational School Al - Azhaar Tulungagung are able to process organic waste around the school which can be used into more useful items in the form of compost fertilizer.
Accumulation of Heavy Metal Copper (Cu) in Mangrove Vegetation in River Flow of the Sea Coast Triswanti, Dina Riska; Arifin, Moch; Sasongko, Purnomo Edi
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 2 (2025): April 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i2.352-361

Abstract

Mangroves have ecological functions, one of which is being able to absorb and accumulate heavy metals which can pollute the environment. The aim of the research is to assess the ability of mangroves to accumulate the heavy metal Cu. The research location is on the East Surabaya River Coast. The research method is purposive sampling with a distance of 250 m from one point to another. The pH value is classified as neutral to slightly alkaline. The salinity value is classified as very high. The texture of mangrove sediments has fine particles consisting of clay and dust. Cu concentrations in sediments are still below quality standards according to the United States Environmental Protection Agency (US-EPA). The Cu concentration in the sediment was highest in the Tambak Oso River with an average of 50.50 mg/kg. The concentration of heavy metals in the roots is higher than in the leaves. The bioconcentration factor (BCF) value is classified as the excluder, while the translocation factor value is classified as the phytostabilization and phytoextraction classes. Keywords: Estuaries, Mangroves, Pollution, East surabaya, Cu toxicity.
Co-Authors Arifin, Moch Deviyanti, Nur Qomariyah Purnomo Edi Sasongko Suprapto, Ekafianda Azzhara