Assoc. Prof. Muhammad Jawad Sajid
Xuzhou University of Technology
Brief introduction：The speaker holds a PhD in "Management Science and Engineering" from "China University of Mining and Technology." He is currently an associate professor at Xuzhou University of Technology's School of Engineering Management in China. He has a strong interest in environmental management research. In particular, he has vast experience with carbon emissions, carbon footprints, and carbon policy. Furthermore, he is involved in the development of emerging technologies for the combined use of renewable resources such as wind, air, and water. The speaker has co-authored 32 papers, 20 of which have been published as the first author. There have been eight SCIEs, two SSCIs, four EIs, and three ESCIs published in total. The author holds one invention patent, four utility model patents, and five appearance patents as the first inventor. He was appointed as co-chair of MITM2020: Modern informatics and its teaching methods, held on May 20, 2020 in Andijan, Uzbekistan.
Title：Consumer demand and the industrial supply stimulated carbon emissions and linkages
Abstract：According to supply-side economics, economic growth is determined by producers' willingness to create goods and services, whereas demand-side economics believes that consumers' demand for goods and services is the primary economic driver. While some argue that both sides equally simulate economic growth, the same is true for a country's or region's industrial carbon emissions, where industrial supply capacity and final consumer demand are the primary stimulators of industrial carbon emissions and inter- and intra-industrial (sectoral) carbon linkages (interconnections). There is a dearth of literature on consumer demand and industrial supply-stimulated carbon emissions, as well as their interconnections. As a result, little is known about the concurrent effects of consumer demand and industrial supply-driven carbon emissions and industrial linkages. Subsequently, the equitable allocation of responsibility for industrial carbon emissions between producers and consumers based on their stimulation of industrial upstream and downstream emissions is also not well known.
The Leontief demand and Ghosh supply models are the two primary models used to estimate industrial demand and supply-stimulated carbon emissions. The Leontief model makes use of the direct input coefficient matrix and industrial final demand as the primary multiplier. On the other hand, the Ghosh supply model makes use of the direct output coefficient matrix and industrial supply factors (labor and capital) as the primary multiplier . Industrial downstream linkages with other sectors are determined by production factors (labor and capital); industrial upstream linkages with other sectors are determined by final demand for industrial products; and an industry also supplies (sales) and purchases internally, referred to as its internal linkage . Industrial carbon linkages are mostly estimated using two approaches: the classical multiplier and the hypothetical extraction method (HEM) . In comparison to traditional multiplier approaches, HEM provides a significantly superior method for calculating an economy's inter- and intra-sectoral linkages . The hypothetical extraction method overcomes the limitations of the classical multiplier method by estimating the value of a sector by removing its linkages from the economic system .
The purpose of this keynote speech is to clarify the concept and implications of consumer demand and industrial supply-induced carbon emissions and their linkages. The author will begin by explaining how to estimate consumer demand and industrial supply-induced carbon emissions using the Leontief demand and Ghosh supply models. A breakdown of emissions resulting from various sources of consumer demand (e.g., households, government, and final trade) and industrial supply (e.g., workers and capital) will be discussed after that. Following that, demand-induced inter- and intra-sectoral upstream industrial carbon linkages, as well as supply-induced downstream industrial carbon linkages, will be discussed. In addition, the procedure for estimating these linkages using the HEM method will be presented. Finally, the implications of consumer demand and supply-induced linkages for a fair allocation of upstream and downstream carbon emission responsibilities to final consumers and industrial producers will be discussed in this keynote speech.
Assoc. Prof. Zawawi Bin Daud
University Tun Hussein Onn Malaysia
Brief introduction：Dr. Zawawi Daud works as an Associate Professor at Faculty of Civil and Environmental Engineering, University Tun Hussein Onn Malaysia. Born and trained in Malaysia, he has a bachelor’s degree in Civil Engineering (University of Technology Malaysia), a master’s in Civil Engineering (Environment) (University of Technology Malaysia), and a doctorate in Environmental Engineering (University of Science Malaysia). Dr. Zawawi teaches various courses related to environmental engineering, management and science at undergraduate and masters levels. These include water and wastewater treatment, biological and physico-chemical treatment processes, sludge management, industrial and hazardous waste management and water quality management. Dr. Zawawi’s research focuses on alleviating problems associated with water pollution issues from industrial wastewater and landfill leachate. His latest interest is on natural adsorbent material in water and wastewater treatments.
Title：Landfill Leachate Treatment Using Low-cost Adsorbent
Abstract：The rapid generation rate of solid waste is due to the increasing population and industrialization. Nowadays, solid waste has been a major concerning problem in handling and disposal thus adsorption treatment process has been introduced which is an effective and low-cost method in removing organic and inorganic compounds from leachates such as chemical oxygen demand (COD) and ammoniacal nitrogen (NH3-N). A most commonly adsorbent used for the removal of organic and inorganic compounds is activated carbon (AC), yet the main disadvantage is being too expensive in cost. Many researchers tried to use low-cost adsorbent waste materials such as peat soil, limestone etc. This study reveals a list of low-cost adsorbents and their capacity of adsorption for the removal of COD and NH3-N. Furthermore, the preparation of these low-cost adsorbents as well as their removal efficiencies, relative cost and limitation are discussed. The most efficient, cost-effective, and environment-friendly adsorbent can be used for the removal of COD and NH3-N thus can be provided for commercial usage or water and wastewater treatment plant.