The Generation Rate and Composition of Municipal Solid Waste During the Asian Games XVIII at Jakabaring Sport City Palembang
Dwi Aisyah Ananda,
Febrian Hadinata,
Ika Juliantina,
Jalo Hasintongan Pardede
Issue:
Volume 4, Issue 2, April 2019
Pages:
42-47
Received:
12 April 2019
Accepted:
2 June 2019
Published:
12 June 2019
Abstract: Jakabaring Sport City is an integrated sports area of 325 Ha, consisting of sports and residential facilities. During the sporting event, the volume of municipal solid waste (MSW) from this region increases along with the number of visitors and athletes who are active in the region. This study aims to measure the generation rate and composition of MSW in the Jakabaring Sport City area during the sporting activities, namely the XVIII Asian Games. Measurements were carried out for seven days in the span of the XVIII Asian Games (18 August 2018 - 2 September 2018). Sampling was carried out in nine sports facilities and all residential facilities located at Jakabaring Sport City (athletes homestead, rental apartments, and apartments), according to the distribution of MSW containers in each facility. The MSW generation rate is obtained by dividing the total volume of waste by total visitors and the day of use of sports or residential facilities. While the composition of MSW (in the wet weight fraction) is divided into organic waste and inorganic waste (plastic, paper and residue). The measurement results show differences in the rate of MSW generation between sports facilities and residential facilities in the Jakabaring Sport City area. In sports facilities, MSW generation rate is measured at 0.0329 kg/person/day with the composition of MSW dominated by organic waste (= 59.19%). The measured density of MSW in sports facilities was 525.80 kg/m3. Whereas in residential facilities, the MSW generation rate is measured at 0.7255 kg/person/day, with the composition of MSW dominated by inorganic waste (= 42%). The average waste density in residential facilities is 270.57 kg/m3. The rate of MSW generation in residential facilities is higher than the rate of MSW generation in the sports area, may be due to differences in usage hours of the two types of facilities. Further research is needed on the rate of waste generation per hour of use in sports facilities during a sporting event in the region.
Abstract: Jakabaring Sport City is an integrated sports area of 325 Ha, consisting of sports and residential facilities. During the sporting event, the volume of municipal solid waste (MSW) from this region increases along with the number of visitors and athletes who are active in the region. This study aims to measure the generation rate and composition of ...
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Effect of Organic Matter on Swell and Undrained Shear Strength of Treated Soils
Samuel Jonah Abbey,
Adegoke Omotayo Olubanwo,
Samson Ngambi,
Eyo Umo Eyo,
Blessing Oluwaseun Adeleke
Issue:
Volume 4, Issue 2, April 2019
Pages:
48-58
Received:
31 May 2019
Accepted:
1 July 2019
Published:
12 July 2019
Abstract: This paper presents a laboratory and statistical study on swell and undrained shear strength of cemented organic clays blended with eco-friendly (by-product) cementitious materials such as ground granulated blast slag (GGBS) and cement kiln dust (CKD). The presence of organic matter in soils can be very problematic especially during construction of infrastructures such as roads and foundations. Therefore, experimental and statistical investigations are crucial to further understand the effect of organic matter on swell and strength performance of soils treated with by-product materials (GGBS and CKD). Five artificially synthesised organic clays with 0%, 5%, 10%, 15% and 20% organic matters were mixed with 20% cement during the first phase of mixing. In the second phase, cement content was reduced to 4% and blended with 12% GGBS and 4% CKD respectively. All mixed samples were cured up to 56days and subjected to undrained triaxial test and one-dimensional oedometer swell test. The undrained shear strength of the untreated soils decreases from 22.47kPa to 15.6kPa upon increase in organic matter from 0-20%. While the swell increases from 1.17% to 3.83% for the same range of 0-20% organic matter. The results also show improvement on strength and swell upon addition of 20% cement for all investigated samples. For samples treated with 4% cement and inclusion of 12% GGBS and 4% CKD, the treated soils showed better performance in terms of swell potential due to reduction in plasticity compared to the plasticity of soils treated with 20% cement. Undrained shear strength increases from 632kPa to 804.9kPa and from 549.8kPa to 724.4kPa with reduction in organic matter upon addition of 20% CEM and 4% CEM: 12% GGBS: 4% CKD after 56days. The results obtained show that the inclusion of GGBS and CKD reduced swell and increases undrained shear strength irrespective of the percentage of organic materials due to cementation effect. However, results of the statistical studies show that the presence of organic matter influences the extent of performance of the cement, GGBS and CKD treated soils.
Abstract: This paper presents a laboratory and statistical study on swell and undrained shear strength of cemented organic clays blended with eco-friendly (by-product) cementitious materials such as ground granulated blast slag (GGBS) and cement kiln dust (CKD). The presence of organic matter in soils can be very problematic especially during construction of...
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