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All Journal KURVATEK CHEMVIRO : Jurnal Kimia dan Ilmu Lingkungan
Nasution, Rizki Khoiriah
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Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Electrical & Electronics Engineering Engineering Environmental Science Social Sciences

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LITERATURE REVIEW ON CO-FIRING OF SUB BITUMINOUS COAL AND BIOMASS FOR GREENHOUSE GAS EMISSION MITIGATION Nasution, Rizki Khoiriah
KURVATEK Vol 9 No 2 (2024): Energy Management and Sustainable Environment
Publisher : Institut Teknologi Nasional Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33579/krvtk.v9i2.5429

Abstract

The overuse of fossil fuels has led to global warming and air pollution due to greenhouse gas emissions, particularly CO2. The toxic effects of coal combustion can be reduced by mixing coal with biomass, which is called the co-firing method. This study aims to analyze the use of co-firing using various types of biomass based on previous studies. The results show that different biomass blending ratios affect the emission reduction significantly. Mixing palm kernel shell biomass at a ratio of 10% biomass and 90% coal reduced emissions by 20%, while mixing mesua ferrea tree biomass and sawdust at a ratio of 75% coal and 25% biomass reduced emissions by 45%. The use of empty fruit bunch biomass at a ratio of 30% biomass and 70% coal can reduce CO2 emissions by 72.14%. Overall, co-firing proved effective in reducing greenhouse gas emissions and accelerating the transition to renewable energy, although its effectiveness depends on the type of biomass and the blending ratio.
Metode Fitoremediasi dalam Pengelolaan Air Tercemar Tembaga (Cu) Berdasarkan Literatur Review Nasution, Rizki Khoiriah
Jurnal Kimia dan Ilmu Lingkungan: Chemviro Vol. 2 No. 2 (2024): Vol. 2 No. 2 (2024)
Publisher : Universitas Bojonegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56071/chemviro.v2i2.1042

Abstract

Increased industrialization and urbanization lead to heavy metal pollution of waters, causing serious environmental impacts. Existing microbial technologies to address this problem are often expensive and not always environmentally friendly. Phytoremediation, using plants to remove heavy metals, offers a cheaper and environmentally friendly solution. These methods include phytoextraction, phytostabilization, phytovolatilization, phytofiltration, and phytodegradation. Phytoremediation technology can be applied in-situ or ex-situ, with in-situ methods being more economical. The plants compared in the literature review are Ipomoae aquatica Forks, Salvinia molesta, Pistia stratiotes, Eichhornia crassipes and Sagittaria lancifolia. Based on previous studies, research shows plants such as water hyacinth (Eichhornia crassipes) and spear leaves (Sagittaria lancifolia) are effective in absorbing copper (Cu) from polluted water, making them optimal choices for phytoremediation. This technology provides an efficient and low-cost solution to address heavy metal pollution.
Overview Fitoremediasi Dalam Pengelolaan Tanah Tercemar Kadmium (Cd) Nasution, Rizki Khoiriah
Jurnal Kimia dan Ilmu Lingkungan: Chemviro Vol. 2 No. 2 (2024): Vol. 2 No. 2 (2024)
Publisher : Universitas Bojonegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56071/chemviro.v2i2.1043

Abstract

Economic development and anthropogenic activities, such as industry and agriculture, lead to deepening soil pollution by heavy metals. Heavy metal pollution threatens human health through the food chain, air and direct contact. Agricultural soils are often polluted by mining waste residues, pesticides, and sewage disposal, which require immediate attention. Heavy metals such as cadmium (Cd), which cannot be biodegraded, have high toxic potential and adversely affect plant health, growth and food production. Conventional remediation methods, such as physical and chemical, face challenges such as high costs and the risk of secondary pollution. As an alternative, phytoremediation offers an environmentally friendly and low-cost solution by using plants to accumulate and remove heavy metals. This method is effective in reducing Cd pollution in soil. The purpose of the literature review is to compare plants that have effectiveness in cadmium absorption in soil. Based on the review of previous studies, it shows that plants such as Impatiens balsamina L (96%) and Red Cockscomb Celosia plumosa (Voss) Burv (85%) are highly efficient in Cd sorption and suitable for phytoremediation applications. This phytoremediation technology offers an easy and effective way to deal with heavy metal pollution in soil.
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