Sustainable and efficient stabilization/solidification of Pb, Cr, and Cd in lead-zinc tailings by using highly reactive pozzolanic solid waste

2022 ◽  
Vol 306 ◽  
pp. 114473
Author(s):  
Haojie Wang ◽  
Chenxuan Ju ◽  
Min Zhou ◽  
Jiaao Chen ◽  
Yiqie Dong ◽  
...  
Keyword(s):  
Solid Waste ◽  
Lead Zinc

scholarly journals PROPERTIES OF THE FILTRATE FORMED AFTER TERMINATION OF THE OPERATION OF THE LANDFILL

2019 ◽  
Vol 19 ◽  
pp. 122-127
Author(s):  
N. Grynchyshyn
Keyword(s):  
Heavy Metals ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Central City ◽  
Ammonium Nitrogen ◽  
Total Iron ◽  
Household Waste ◽  
Wastewater Sample ◽  
Lead Zinc ◽  
Environmental Measures

The hazardous factors influencing the disposal of solid household waste on the components of the environment belongs to the filtrate, the formation of which does not stop after the cessation of the operation of landfills. To solve the problem of environmental hazard of the filtrate can be done through the implementation of phased environmental measures. Priority measures include the arrangement of a system for collecting and removing filtrate from the landfill body. The main environmental measures are to clean the removed filtrate. The research of the properties of the filtrate of each individual landfill is necessary to justify the choice of the most effective methods of cleaning it. The purpose of the work was to study the properties of the filtrate, which continues to be formed after the cessation of the operation of the landfill of municipal solid waste in the city of Lviv. It is established that the studied filtrate is a solution with a high concentration of chemical compounds. For most indicators of filtrate is characterized by seasonal dynamics. After the warm season, the COD and BOD5 in the filtrate is increases the concentration of chloride anions, ammonium nitrogen, total iron increases; decreases the content of nitrates, nitrites and petroleum products. The indicators of filtrate, which do not change during the seasons, include the content of sulphates, phosphates and heavy metals (copper, lead, zinc). The filtrate, which continues to be formed at the municipal solid waste landfill, tends to reduce the content of heavy metals (copper, zinc, lead), ammonium nitrogen, chlorides and COD and an increase in the content of anions (phosphates, sulfates, nitrites, nitrates), oil products and BOD5. The studied filtrate does not meet the requirements for the composition and properties of wastewater discharged in-to the central city system for the content of chlorides, sulfates, nitrates, nitrites, ammonium nitrogen, lead, zinc, total iron. The filtrate can be discharged into the wastewater system only after pretreatment using methods that ensure that the filtrate indicators comply with the permissible values of indicators in the wastewater sample, the established re-quirements for the composition and properties of wastewater discharged into the wastewater system.

Separation of a Mixture of Lead, Zinc, and Silver

1878 ◽  
Vol 5 (110supp) ◽  
pp. 1755-1755
Author(s):  
F. Maxwell Lyte
Keyword(s):  
Lead Zinc

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
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