scholarly journals Karakteristik Marshall Campuran Aspal AC-WC Menggunakan filler Spent Bleaching Earth Sebagai Pengganti Abu Batu

2021 ◽  
Vol 3 (2) ◽  
pp. 80
Author(s):  
Wawan Kurniawan
Keyword(s):  
Solid Waste ◽  
Bleaching Earth ◽  
Main Ingredient

Indonesia’s road crackdown commonly USES a flexible crackdown that a main ingredient on asphalt. One of the tools used in subthanizing aggregates with spent bleaching earth (SBE) replacing the filler SBE into teh mix of asphalt is predicted to enhance resiliencs SBE isa solid waste produced by the plants’s biofuel refinery, which included the exictence of B2 on this study aims to find out how much marshall’s characteristics affect the AC-WC asphalt replace the filler with SBE on at  the first stage of testing got an optimum asphalt level next filler replacement will be done with SBE as big 0%, 25%, 50%, 75%, 100% and the result met the spesifications at SBE level 25%, with this research this waste of B2 could be used replace the filler in variations 25%

scholarly journals Recycling Solid Waste of Coconut Oil Industry: A Response Surface-Goal Programming Approach

2020 ◽  
Vol 19 (2) ◽  
pp. 111
Author(s):  
Dwi Agustin Nuriani Sirodj ◽  
Ivan Gunawan
Keyword(s):  
Solid Waste ◽  
Response Surface ◽  
Goal Programming ◽  
Bleaching Earth ◽  
Coconut Oil ◽  
Oil Industry ◽  
Edible Oil ◽  
Optimal Combination ◽  
Programming Approach ◽  
Success Factor

Waste minimization is a key success factor to achieve sustainability, including in the edible oil industry. One type of solid waste produced substantially in this industry is spent bleaching earth (SBE), which comes from a mixture of bleaching earth (BE) and activated carbon (CA) used in the edible oil refining process. SBE that is recycled through a heating process is known as heat regenerated SBE (HRSBE). The process is influenced by two factors as stated in previous studies: temperature and time. In the current study, we report the results of experiments to find the optimal combination of temperature and time in restoring the absorbent quality of SBE by observing four quality parameters: colors (red and yellow), Free Fatty Acid (FFA), and Peroxide Value (PV). The current study uses Response Surface Methodology (RSM) to design the experiments and to find the equations of the relationship between the factors for each response; as well as Goal Programming (GP) to find the most optimal combination of factors in order to achieve aggregated quality targets. The findings show that 3.414 hours of heating at a temperature of 151.64oC allow HRSBE to produce coconut oil in accordance with the expected quality targets.

Evaluation of reusability of bleaching earth in vegetable oil refining

2020 ◽  
Vol 49 (5) ◽  
pp. 393-399
Author(s):  
Güray Kılınççeker ◽  
M. Kemal Sangün ◽  
Sema Çelik ◽  
Utku Arslan ◽  
Farhad Zarifi
Keyword(s):  
Fatty Acids ◽  
Free Fatty Acids ◽  
Design Methodology ◽  
Bleaching Earth ◽  
Oil Refining ◽  
Main Ingredient ◽  
Bleaching Process ◽  
Content Type ◽  
Neutralization Process ◽  
Vegetable Oil Refining

Purpose Unrefined vegetable oils contain triglycerides and free fatty acids as the main ingredient, but besides, they contain waxes, phospholipids, tocopherols, β-carotene, chlorophyll and other trace amounts depending on the type of oil. Most undesirable substances such as residues, free fatty acids and phospholipids are separated in the neutralization process of the oil refining. As a pigment, β carotene is separated by the bleaching earth (BE) in the bleaching process. The BE is disposed of as waste after the bleaching process. In this study, waste BE, which is allocated for disposal, has become reusable. Design/methodology/approach For this purpose, the oil is separated from the BE by solvent extraction under room conditions. AOCS Ba 3-38, TS EN ISO 734, ISO 15305 and TS 324 standard methods were used. Findings As a result of the analysis, it was found that 1% of oil remained in the recovered BE. The recovered BE containing 1% oil was carbonized at 550oC for 1 and 2 h. The BE obtained after this process was used in the bleaching process at a rate of 1%. Reuse attempts were repeated seven times, colour-opening capacities were measured and BET analyses were performed to establish a relationship between surface area-discolouration capacity and reusability. Originality/value This study demonstrates that recovery of waste BE can be performed and if this reusability considers in the industrial scale, it will save on oil refining costs and reduce waste.

A Review : Sustainability from Waste

2019 ◽  
pp. 134-155
Author(s):  
Kriti Jain ◽  
Chirag Shah
Keyword(s):  
Waste Management ◽  
Solid Waste ◽  
Rural Areas ◽  
Waste To Energy ◽  
Waste Generation ◽  
Material Resources ◽  
Waste Dumps ◽  
Waste Segregation ◽  
Treatment And Disposal ◽  
Engineered Landfill

The increasing volume and complexity of waste associated with the modern economy as due to the ranging population, is posing a serious risk to ecosystems and human health. Every year, an estimated 11.2 billion tonnes of solid waste is collected worldwide and decay of the organic proportion of solid waste is contributing about 5 per cent of global greenhouse gas emissions (UNEP). Poor waste management - ranging from non-existing collection systems to ineffective disposal causes air pollution, water and soil contamination. Open and unsanitary landfills contribute to contamination of drinking water and can cause infection and transmit diseases. The dispersal of debris pollutes ecosystems and dangerous substances from waste or garbage puts a strain on the health of urban dwellers and the environment. India, being second most populated country of the world that too with the lesser land area comparatively, faces major environmental challenges associated with waste generation and inadequate waste collection, transport, treatment and disposal. Population explosion, coupled with improved life style of people, results in increased generation of solid wastes in urban as well as rural areas of the country. The challenges and barriers are significant, but so are the opportunities. A priority is to move from reliance on waste dumps that offer no environmental protection, to waste management systems that retain useful resources within the economy [2]. Waste segregation at source and use of specialized waste processing facilities to separate recyclable materials has a key role. Disposal of residual waste after extraction of material resources needs engineered landfill sites and/or investment in waste-to-energy facilities. This study focusses on the minimization of the waste and gives the brief about the various initiations for proper waste management system. Hence moving towards the alternatives is the way to deal with these basic problems. This paper outlines various advances in the area of waste management. It focuses on current practices related to waste management initiatives taken by India. The purpose of this article put a light on various initiatives in the country and locates the scope for improvement in the management of waste which will also clean up the unemployment.

Pengelolaan Limbah B3 Di Rumah Sakit X Kota Batam

2019 ◽  
Vol 5 (1) ◽  
Author(s):  
Salma Savira Siddik ◽  
Eka Wardhani
Keyword(s):  
Health Service ◽  
Solid Waste ◽  
Medical Management ◽  
Secondary Data ◽  
Toxic Waste ◽  
Waste Collection ◽  
Private Hospitals ◽  
Collection Method ◽  
Technical Requirements ◽  
Class B

<p>Hospital X was class b private hospitals that are located in Batam with 297 unit beds. The waste that can be categorized as solid waste medical in the hospital which is infectious, pharmacy, hazardous and toxic waste, cytotoxic, sharp object.  The purpose of this research is to identify, a source of , the characteristics, solid waste medical produced by hospital X in Batam and also conduct an evaluation of solid waste medical management hospital in accordance with the minister of environment and forestry 56 2015 on procedures and technical requirements of hazardous and toxic waste management than health service facilities. This research used primary and secondary data collection method. The research results show solid waste medical management at the hospital X in Batam most of them are in according to rule. But there are some things that must be improved are blinding trash bag, efficiency and minimal temparature the combustion chamber incinerator. Management efforts must to do are briefing to officer of the waste collection about the way to blinding trash bag in according to the regulation and the incinerator that can serve confirming to standard of burning hazardous and toxic waste. <strong></strong></p>

There Reduction of alkali loss in an ash leaching system

TAPPI Journal ◽  
2017 ◽  
Vol 16 (7) ◽  
pp. 383-391
Author(s):  
CARLA CÉLIA ROSA MEDEIROS ◽  
FLÁVIA AZEVEDO SILVA ◽  
SAULO GODOY PIGNATON ◽  
ESTANISLAU VICTOR ZUTAUTAS ◽  
KLEVERSON FIGUEIREDO
Keyword(s):  
Solid Waste ◽  
Air Emissions ◽  
Recovery Cycle ◽  
Chloride Level ◽  
Control Loops ◽  
Kraft Mill ◽  
Recovery Boiler ◽  
Ash Leaching

There are many points in a kraft mill where the alkaline compounds are purged from the process. Several effluents, solid waste, and air emissions contain alkali, which leads to the necessity of chemical makeups to maintain the liquor balance. The main loss of alkali at the Veracel mill is present in the wastewater from the recovery boiler; more precisely, it is from the ash leaching system, which represents 80% of the total losses. To minimize the alkaline losses while keeping the chloride level in the recovery cycle under control, a project was developed at Veracel. Key actions were taken by adjusting the control loops of the ash leaching system, mainly on the slurry density and purge control. These adjustments led to a decrease in alkali losses and to an increase of treated ash, and kept the chloride level of the recovery boiler dust at 2.6%.

Municipal solid waste landfills biogas utilization

2019 ◽  
Vol 57 ◽  
pp. 192-202
Author(s):  
A Yurchenko ◽  
◽  
D Kulikova ◽  
E Dmitruk ◽  
L Cheberiachko ◽  
...  
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Municipal Solid Waste Landfills ◽  
Solid Waste Landfills
Sign in / Sign up

Export Citation Format

Share Document