Article Per Year (5 Year)
p-Index From 2019 - 2024
0.61
P-Index
This Author published in this journals
All Journal Jurnal Ecocentrism
Ni Luh Widyasari
Universitas Mahasaraswati Denpasar
Energy Engineering Environmental Science

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
Kajian Tanaman Hiperakumulator Pada Teknik Remediasi Lahan Tercemar Logam Berat Ni Luh Widyasari
Jurnal Ecocentrism Vol. 1 No. 1 (2021): Jurnal Ecocentrism
Publisher : Program Studi Teknik Lingkungan Unmas Denpasar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (585.358 KB)

Abstract

Increased activity in the industrial sector can increase the production of solid, liquid and gas waste. Industrial waste that is indicated by heavy metals can reduce environmental quality. Heavy metal pollution can occur in soil and waters which will disturb the ecosystem in it. Heavy metals not only have a negative impact on the environment but also on the health of the human body. There have been many chemical and physical techniques for dealing with heavy metals, but they are still not effective because these techniques are considered to increase the level of pollution and require a large amount of money. Therefore, the remediation technique using hyperaccumulator plants is one of the solutions in efforts to resolve heavy metals polluted in a soil and waters. Vetiveria zizanioides, Sansevieria trifasciata, Eichhornia crassipes are hyperaccumulator plants of capable absorbing and accumulating heavy metals by phytoextraction, phytodegradation and rhizofiltration mechanism.
Studi Teknik Bioremediasi Tanah Tercemar Logam Berat Dengan Menggunakan Eco-Enzyme Ni Luh Widyasari; I Gusti Ngurah Made Wiratama
Jurnal Ecocentrism Vol. 1 No. 2 (2021): Jurnal Ecocentrism
Publisher : Program Studi Teknik Lingkungan Unmas Denpasar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (780.468 KB)

Abstract

The technique of remediation of heavy metal contaminated soil can be done biologically with the help of microorganisms. Bioremediation is a soil remediation technique that uses enzymes from microorganisms in an effort to rehabilitate soil. The bioremediation mechanism occurs when enzymes derived from the activity of microorganisms interact with heavy metals in the soil and then convert them into uncomplicated chemical structures so that the level of heavy metal toxicity decreases. Among biological agents, enzymes have great potential to effectively convert and detoxify pollutant substances because enzymes have been recognized to be capable of converting pollutants at detectable levels and are potentially suitable for restoring polluted environments. Eco-enzyme is a fermented liquid produced from the composition of fruit/vegetable organic waste, water and brown sugar, which is an alternative product in helping the process of soil biodegradation. Eco-enzymes contain hydrolytic enzymes that can increase soil fertility and can be used as an effort to degrade heavy metals in polluted soil.
Analisis Kualitas Air Tukad Pakerisan Menggunakan Metode Indeks Pencemaran I Made Nada; Ni Luh Widyasari; Ni Putu Meilda Florenzia Ekayanti
Jurnal Ecocentrism Vol. 3 No. 2 (2023): Jurnal Ecocentrism
Publisher : Program Studi Teknik Lingkungan Unmas Denpasar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36733/jeco.v3i2.7488

Abstract

Tukad Pakerisan is one of the largest rivers in Bali that crosses Gianyar Regency. The increase in population has caused the function of Tukad Pakerisan to decline and become polluted. This study aims to determine the quality and status of quality in the upstream, middle and downstream of Tukad Pakerisan. The results showed that the quality of Tukad Pakerisan in the upstream section had parameters that exceeded the quality standards, namely Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Dissolved Oxygen (DO) and Phosphate. In the middle part, the parameters that exceed the quality standard are Dissolved Oxygen (DO) and Fecal Coliform. On the downstream side, parameters that exceed quality standards are Dissolved Oxygen (DO) and Phosphate. While the results of the calculation of the Pollution Index (IP) at the upstream point are 1.76; midpoint 1.80; and downstream point 1.13 with slightly polluted status.
Co-Authors I Gusti Ngurah Made Wiratama I Made Nada Ni Putu Meilda Florenzia Ekayanti