Vol. 1 No. 3 (2021) Green engineering principles and application

Green engineering is an approach to design and use of processes and products and has the objective to reduce pollution, promotes sustainability, and minimizes risk to human health and the environment. This concept has been widely used for many applications and the use of this concept is critical for future sustainability.

Published: 2021-11-30

Articles

Green engineering principles and application: bioremediation

Tony Hadibarata, Bieby Voijant Tangahu
DOI : https://doi.org/10.33086/etm.v1i3.2504
1-8
2021-11-30
Abstract views: 306 , Downloads : 235
Abstract

The adulteration of the environment by hazardous waste, such as heavy metals, nuclear wastes, hydrocarbons, pesticides and greenhouse gases is the major serious problem which need to be reduced. Common remediation technique such as physical, chemical and biological process are being applied. Chemical process can transform and change organic contaminant of interest which is not sufficient to

Bioenergy as a prospective energy source in the future

Tony Hadibarata, Nita Citrasari
DOI : https://doi.org/10.33086/etm.v1i3.2505
9-14
2021-11-30
Abstract views: 189 , Downloads : 140
Abstract

The issues of global warming and greenhouse gasses have raised the concern of the people and led to integrate ambitious of using bioenergy in many countries. In this paper, the issues of conventional energy are stated, and the different types of conventional energy resources are discussed including coal, petroleum and natural gas. The process of pulverized coal combustion (PCC) to generate elec

Antimicrobial textile modified with silver nanoparticles in-situ synthesized using weed leaves extract

Anisa Ratnasari
DOI : https://doi.org/10.33086/etm.v1i3.2502
15-18
2021-11-30
Abstract views: 164 , Downloads : 103
Abstract

Silver nanoparticles (AgNPs) presence has considerable impact on microbial growth. In this paper, AgNPs was deposited on surface of four textiles to enhance the anti-microbial properties using immersion technique. Immersion technique was selected since it was simple, no need high energies, and no additional equipment required. In addition, AgNPs was synthesized using in situ-bio technique which

Groundwater and society: fresh submarine groundwater discharge and itsmanagement improvement

Tony Hadibarata, Berliana Aulia Permatasari
DOI : https://doi.org/10.33086/etm.v1i3.2503
19-22
2021-11-30
Abstract views: 184 , Downloads : 118
Abstract

The issues of global warming and greenhouse gasses have raised the concern of the people and led to integrate ambitious of using bioenergy in many countries. In this paper, the issues of conventional energy are stated, and the different types of conventional energy resources are discussed including coal, petroleum and natural gas. The process of pulverized coal combustion (PCC) to generate elec

Study on household waste management in Kampung Parit Haji Siraj, Johor, Malaysia

Nazatul Nazira Binti Azahar, Mohamed Zuhaili Bin Mohamed Najib, Hazlami Fikri Bin Basri, Muhammad Noor Hazwan Jusoh, Tuan Noor Hasanah Binti Tuan Ismail
DOI : https://doi.org/10.33086/etm.v1i3.2499
23-28
2021-11-30
Abstract views: 207 , Downloads : 136
Abstract

Waste management issue has been a major threat and challenge due to the undergoing rapid industrialization and urbanization not only to Malaysia, but also other countries around the world. To tackle that, the first step starts at household level where people are encouraged to try to manage their wastes properly. The aim of this study was to review the current practises of household waste manage

Effect of metal content from sewage sludge on the growth of Orthosiphon stamineus

Nur Syamimi Zaidi, Johan Sohaili, Zhang Zhan Loh, Azmi Arisa, Norelyza Hussein
DOI : https://doi.org/10.33086/etm.v1i3.2498
2021-11-30
Abstract views: 146 , Downloads : 106
Abstract

Municipal sewage sludge can be used as fertilizer as it contains a lot of nutrients. By focusing on copper (Cu), iron (Fe), manganese (Mn), and zinc (Zn) contents in municipal sewage sludge from primary oxidation ponds and in plant tissue sections, this study attempts to explain the relationship between plant yield and metal concentrations. Raw sludge samples were collected, air-dried, and grou