scholarly journals Engineering properties for high kitchen waste content municipal solid waste

2015 ◽  
Vol 7 (6) ◽  
pp. 646-658 ◽  
Author(s):  
Wu Gao ◽  
Yunmin Chen ◽  
Liangtong Zhan ◽  
Xuecheng Bian
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Engineering Properties ◽  
Kitchen Waste

scholarly journals Evaluation of Maturity and Odor Emissions in the Process of Combined Composting of Kitchen Waste and Garden Waste

2021 ◽  
Vol 11 (12) ◽  
pp. 5500
Author(s):  
Bangxi Zhang ◽  
Feifei Fan ◽  
Chao Guo ◽  
Mingji Yu ◽  
Mingcan Zhao ◽  
...  
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Kitchen Waste ◽  
Odor Emissions ◽  
Maturity Effect ◽  
Better Than ◽  
Garden Waste

With the development of urbanization, kitchen waste and garden waste have become an important part of municipal solid waste (MSW), which is in urgent need of resource treatment. This study investigated the impacts of garden waste as auxiliary materials on maturity and odor emissions (NH3 and H2S) during kitchen waste composting. The result showed that the combined composting product of kitchen waste and garden waste achieved the maturity effect, and the co-composting effect was better than that of separate composting of kitchen waste. Meanwhile, compared with the separate composting treatment of kitchen waste, the co-composting treatment of kitchen waste and garden waste can effectively reduce the cumulative emissions of H2S by more than 85%, and effectively reduce the cumulative emissions of NH3 by more than 75%. This study provides a technical reference for the green fertilizer utilization of kitchen waste and garden waste.

scholarly journals Weathering treatment coupled with nano-silica filling to promote the engineering property of municipal solid waste incinerator bottom ash

RSC Advances ◽  
2018 ◽  
Vol 8 (67) ◽  
pp. 38701-38705
Author(s):  
Qingna Kong ◽  
Jun Yao ◽  
Qian Yang ◽  
Dongshen Shen ◽  
Yuyang Long
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Bottom Ash ◽  
Engineering Properties ◽  
Waste Incinerator ◽  
Municipal Solid Waste Incinerator ◽  
Nano Silica ◽  
New Approach ◽  
Mswi Bottom Ash ◽  
Solid Waste Incinerator

A new approach including weathering treatment and nano-silica filling was employed to promote the engineering properties of municipal solid waste incinerator (MSWI) bottom ash.

scholarly journals Rainfall Reliability Evaluation for Stability of Municipal Solid Waste Landfills on Slope

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Fu-Kuo Huang ◽  
Grace S. Wang ◽  
Yueh-Lin Tsai
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Engineering Properties ◽  
Ann Model ◽  
First Order ◽  
Reliability Method ◽  
Municipal Solid Waste Landfills ◽  
Artificial Neural Network Ann ◽  
The Stability ◽  
Solid Waste Landfills

A method to assess the reliability for the stability of municipal solid waste (MSW) landfills on slope due to rainfall infiltration is proposed. Parameter studies are first done to explore the influence of factors on the stability of MSW. These factors include rainfall intensity, duration, pattern, and the engineering properties of MSW. Then 100 different combinations of parameters are generated and associated stability analyses of MSW on slope are performed assuming that each parameter is uniform distributed around its reason ranges. In the following, the performance of the stability of MSW is interpreted by the artificial neural network (ANN) trained and verified based on the aforementioned 100 analysis results. The reliability for the stability of MSW landfills on slope is then evaluated and explored for different rainfall parameters by the ANN model with first-order reliability method (FORM) and Monte Carlo simulation (MCS).

scholarly journals Municipal Solid Waste Incineration (MSWI) Ashes as Construction Materials—A Review

Materials ◽  
2020 ◽  
Vol 13 (14) ◽  
pp. 3143
Author(s):  
Byoung Hooi Cho ◽  
Boo Hyun Nam ◽  
Jinwoo An ◽  
Heejung Youn
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Asphalt Binder ◽  
Bottom Ash ◽  
Construction Materials ◽  
Waste Incineration ◽  
Engineering Properties ◽  
Municipal Solid Waste Incineration ◽  
Research Activities ◽  
The U.S

Over the past decades, extensive studies on municipal solid waste incineration (MSWI) ashes have been performed to develop more effective recycling and waste management programs. Despite the large amount of research activities and the resulting improvements to MSWI ashes, the recycling programs for MSWI ashes are limited. For instance, although the U.S. generates more MSWI ashes than any other country in the world, its reuse/recycle programs are limited; bottom ash and fly ash are combined and disposed of in landfills. Reuse of MSWI ashes in the construction sectors (i.e., geomaterials, asphalt paving, and concrete products) as replacements for raw materials is one of most promising options because of the large consumption and relatively lenient environmental criteria. The main objective of this study was to comprehensively review MSWI ashes with regard to specific engineering properties and their performance as construction materials. The focus was on (1) the current practices of MSWI ash management (in particular, a comparison between European countries and the U.S.), (2) the engineering properties and performance of ashes when they are used as substitutes of construction materials and for field applications, and (3) the environmental properties and criteria for the use of MSWI ashes. Overall, the asphalt and concrete applications are the most promising, from both the mechanical and leachate viewpoints. However, cons were also observed: high absorption of MSWI ash requires a high asphalt binder content in hot-mix asphalt, and metallic elements in the ash may generate H2 gas in the high-pH environment of the concrete. These side effects can be predicted via material characterization (i.e., chemical and physical), and accordingly, proper treatment and/or modified mix proportioning can be performed prior to use.

scholarly journals Physical components and influence factors of municipal solid waste (MSW) in the residential area of Beijing

2019 ◽  
Vol 118 ◽  
pp. 04012
Author(s):  
Hongyu Zhang ◽  
Guiqin Wang ◽  
Yaxuan Bai ◽  
Rihui Chen ◽  
Li Zhang
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Family Income ◽  
Great Influence ◽  
Residential Area ◽  
Kitchen Waste ◽  
Beijing Area ◽  
Educational Backgrounds ◽  
The Family ◽  
Building Area

The treatment, disposal and management of municipal solid waste strongly depend on the composition and characteristics of municipal solid waste. The Physical composition of MSW and its influencing factors were investigated and analyzed in the residential of Beijing area. The result showed that the composition of MSW in four seasons was similar, and the kitchen was the main composition of MSW, accounting for 69-74% of the total amount of MSW. The average age of families, educational backgrounds, family income and building area have a great influence on the physical proportion of MSW. As the average age of the family increases, the proportion of other wastes was gradually reduced, the proportion of the harmful waste was increased. With the increase of educational backgrounds and family income, the content of kitchen waste decreased, while the content of recyclable waste increased obviously. The 50 square meters was used as a dividing point for the residential area of the family, the kitchen waste decreased at first and then increased, while the proportion of disposable packaging and other waste increases at first and then decreases with the increase of building area.

scholarly journals Microstructure and Strength of Alkali-Activated Bricks Containing Municipal Solid Waste Incineration (MSWI) Fly Ash Developed as Construction Materials

2019 ◽  
Vol 11 (5) ◽  
pp. 1283 ◽  
Author(s):  
Peng Xu ◽  
Qingliang Zhao ◽  
Wei Qiu ◽  
Yan Xue ◽  
Na Li
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Building Materials ◽  
Waste Incineration ◽  
Engineering Properties ◽  
Chloride Salt ◽  
Municipal Solid Waste Incineration ◽  
Alkali Activated

Alkali-activated materials (AAM) are widely applied in the field of building materials and civil engineering to substitute cement materials. This study used two types of municipal solid waste incineration fly ash (MSWI-FA): grate-firing fly ash (GFFA) and fluidized bed fly ash (FBFA) as brick raw materials. Various weight ratio of 20%, 30%, and 40% GFFA and FBFA were added to coal fly ash (CFA), GGBFs (Ground Granulated Blast-Furnace Slag), and an alkali-activating reagent to produce alkali-activated bricks. Microstructure and crystalline phase composition were observed to analyze their compressive strength, and a leaching test was used to prove the material’s safety for the environment. It can be seen from the results of this study that the alkali-activated bricks containing FBFA had higher compressive strength than those containing GFFA in the same amount. Considering the engineering properties, the alkali-activated bricks containing FBFA are more suitable to be used as building materials. The difference in the compressive strength resulted from the large amount of calcium compounds and chloride salts present in the GFFA. From SEM analysis, it was observed that there was a large number of pores in the microstructure. It was also found from the results of XRD that the bricks containing GFFA contained a large amount of chloride salt. From the results of the two leaching tests, it was found that the amounts of six heavy metals detected in the leachates of the bricks in this study met the corresponding regulation standards. This described MSWI-FA is suitable for use as alkali-activated material, and its products have potential to be commercially used in the future.

Municipal Solid Waste Management Practice in China - A Case Study in Hangzhou

2014 ◽  
Vol 878 ◽  
pp. 23-29
Author(s):  
Jing Ying Ma ◽  
Jian Yi Zhan ◽  
Yue Jun Zhang
Keyword(s):  
Waste Management ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Hazardous Waste ◽  
Solid Waste Management ◽  
Source Separation ◽  
Capital City ◽  
Comprehensive Treatment ◽  
Municipal Solid Waste Management ◽  
Kitchen Waste

The management of municipal solid waste (MSW) in China is facing urgent problems with rapid industrialization and urbanization. This article focused on the status of Hangzhou, capital city of Zhejiang province, China. The regulations, policies, implementation, barriers and solutions about source separation, separate collection, clean & direct transportation, treatment and disposal were introduced. Source separation, separate collection and clean & direct transportation were seriously carried out from 2010. MSW was classified into four kinds, such as kitchen waste, hazardous waste, recyclable waste and other waste. Four kinds of wastes were collected, transported, treated and disposed, respectively. At the same time, a questionnaire survey was conducted in 2011 on 200 households in Xiasha and Gongshu Districts in Hangzhou. The results indicate that many citizens cannot effectively and correctly separated different kinds of solid wastes. Kitchen waste was directly disposed in landfill, because there is no composting plant in Hangzhou City. The collection of recoverable waste and hazardous waste was not in control of municipal solid waste management (MSWM) system. In order to optimize MSWM system in Hangzhou, the government and the citizen must make efforts in source separation, comprehensive treatment system, effective regulations and policies.

Enhancing the Engineering Properties of Indian Black Cotton Soil with Municipal Solid Waste Incineration Ash – A Review

2021 ◽  
Vol 23 (3) ◽  
Author(s):  
Karanbir Singh Randhawa ◽  
◽  
Rajiv Chauhan ◽  
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Expansive Soils ◽  
Construction Materials ◽  
Waste Incineration ◽  
Green Technology ◽  
Engineering Properties ◽  
Sustainable Construction ◽  
Black Cotton Soil ◽  
Greenhouse Emissions

The present study is the review of work carried out by various researchers on the improvement of engineering properties of expansive soils namely Indian Black Cotton Soil (BCS), after the addition of MSWI ash to the soil in varying proportions. The findings of study indicate that the optimum content of MSWI ash to be added to expansive soils for improvement in strength characteristics varies between 10% and 30% with best results at 25% of MSWI ash proportion. This content of MSWI ash increases the UCS of expansive black cotton soil from 28.8 kPa to 53.4 kPa and an increase in CBR value from 3.38% to 9.38%. The review suggests the use of MSWI ash in India keeping in view the enormous increase in volumes of municipal solid waste (MSW) due to fast urbanization in the country. The extensive use of such green technology will go a long way in reducing requirement of civil construction materials thereby lowering greenhouse emissions. Simultaneously, cost effectiveness in improvement of weak soils to be used in Highway subgrade civil engineering applications using MSWI ash will result is sustainable construction practices.

Sign in / Sign up

Export Citation Format

Share Document