Jia Li

Jia Li
Shanghai Jiao Tong University | SJTU · China-UK Low Carbon College

Doctor of Engineering

About

42
Publications
30,856
Reads
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2,658
Citations
Introduction
Jia Li is Associate Professor from 2008 at School of Environmental Science and Engineering, Shanghai Jiao Tong University, China. His research include field of waste management on sustainable E-waste recycling, waste plastic recycling and used lithium-ion battery recycling. He has in charge of several national research projects and published more than 20 scientific papers which included 7 papers in Environmental Science and Technology (IF:5.257 ) and 10 papers in Journal of Hazardous Materials.
Additional affiliations
August 2008 - present
Shanghai Jiao Tong University
Position
  • Professor (Associate)

Publications

Publications (42)
Article
Spent lithium ion battery (LIB) recovery is becoming quite urgent for environmental protection and social needs due to the rapid progress in LIB industries. However, recycling technologies cannot keep up with the exaltation of the LIB market. Technological improvement of processing spent batteries is necessary for industrial application. In this pa...
Article
The wider application of lithium ion batteries brings more production of spent ones to be recovered. There is a pyrometallurgical treatment by getting negative and positive materials burning together. The paper provides theoretical analysis and support for the feasibility of the treatment. Positive material graphite's burning and pyrolysis of negat...
Article
Full-text available
Lithium is a rare metal because of geographical scarcity and technical barrier. Recycling lithium resource from spent lithium ion batteries (LIBs) is significant for lithium deficiency and environmental protection. A novel approach for recycling lithium element as Li2CO3 from spent LIBs is proposed. Firstly, the electrode materials pre-obtained by...
Article
The large-batch application of lithium ion batteries leads to the mass production of spent batteries. So the enhancement of disposal ability of spent lithium ion batteries is becoming very urgent. This study proposes an integrated process to handle bulk spent lithium manganese (LiMn2O4) batteries to in situ recycle high value-added products without...
Article
An innovative recycling method charge-decay electrostatic separation (CDES) has been developed to remove PVC from mixed plastic wastes. According to the charge-decay properties experiments of ABS, PP, and PVC, three charge-decay patterns were found. Computer simulation was used to investigate separation possibility. The differences in the charge-de...
Article
Eddy Current Separation (ECS) is a classic method to separate light metal (aluminum) from plastic in the recycling industry. The aim of this paper is to present an innovative method that using the ECS to separate the printed circuit board (PCB) from the plastic generated from the crushed cell phone. A theoretical model of particle trajectory was es...
Article
The recycling of spent lithium-ion batteries brings benefits to both economic and environmental terms, but it can also lead to contaminants in a workshop environment. This study focused on metals, non-metals and volatile organic compounds generated by the discharging and dismantling pretreatment processes which are prerequisite for recycling spent...
Article
Full-text available
The two- conveyor-electrodes tribo- aeroelectrostatic separator patented in 2010 was designed to sort granular mixtures of insulating materials in a fluidized bed subjected to an electric field perpendicular to the direction of the fluidizing air. The prototype has proven its efficiency for the separation of insulating granules ≤ 2 mm, attaining ex...
Article
The two-conveyor-electrodes tribo -Aero-electrostatic separator patented in 2010 was designed to sort granular mixtures of insulating materials in a fluidized bed subjected to an electric field perpendicular to the direction of the fluidizing air. The prototype ≤has proven its efficiency for the separation of insulating granules ≤ 2 mm, attaining e...
Article
Full-text available
Although corona electrostatic separation is successfully used in recycling waste printed circuit boards in industrial applications, there are problems that cannot be resolved completely, such as nonmetal particle aggregation and spark discharge. Both of these problems damage the process of separation and are not easy to identify during the process...
Article
Plastic products can be found everywhere in people's daily life. With the consistent growth of plastic consumption, more and more plastic waste is generated. Considering the stable chemical and physics characteristics of plastic, regular waste management methods are not suitable for recycling economic strategy of each government, which has become a...
Conference Paper
The two- conveyor-electrodes tribo- aero- electrostatic separator is a device patented in 2010 and intended to sort granular mixtures of insulating materials in a fluidized bed affected by an electric field perpendicular to the direction of the fluidizing air. The prototype of the device has proven its efficiency for the separation of insulating gr...
Article
New recycling technologies have been lately developed in order to enhance the value of fiberglass powder-resin powder portion (FRP) from waste printed circuit boards. The definite aim of the present paper is to present some novel methods that use the image forces for the separation of the resin powder and fiberglass powder generated from FRP during...
Article
Full-text available
The tribo-aero-electrostatic separator achieves the selective sorting of mixed granular insulating materials in a fluidized bed affected by an electric field orthogonally oriented to the direction of the fluidization air. The aim of the present paper is to optimize the design and the operation of such a separator, i.e. maximize the total mass of th...
Article
A tribo-aero-electrostatic separator has been recently patented for the selective sorting of granular plastics mixtures generated during the recycling of waste electrical and electronic equipments (WEEE). The plastics are tribo-charged in a parallelepiped fluidized bed device, two opposite walls of which being the electrodes that generate the elect...
Article
A physical recovery line had been constructed in plant for the increasing waste toner cartridges in previous work. However, with the production, severe lacks of the line were emerged: (1) there was little proper technology of treating the collected toner; (2) strong noise was produced from the line and had influenced the health of worker. For dispo...
Article
Full-text available
Recent studies have demonstrated the effectiveness of tribo-aero-electrostatic separation technologies, which consist in the selective sorting of mixed granular insulating materials in a fluidized bed affected by an electric field orthogonally oriented to the direction of the fluidization air. The aim of the present paper is to put the theoretical...
Article
The world's plastic consumption has increased incredibly in recent decades, generating more and more plastic waste, which makes it a great public concern. Recycling is the best treatment for plastic waste since it cannot only reduce the waste but also reduce the consumption of oil for producing new virgin plastic. Mechanical recycling is recommende...
Article
Full-text available
Electronic waste (e-waste) management is pressing as global production has increased significantly in the past few years and is rising continuously at a fast rate. Many countries are facing hazardous e-waste mountains, most of which are disposed of by backyard recyclers, creating serious threats to public health and ecosystems. Industrialization of...
Article
Electrostatic separation has been widely used to separate conductors and nonconductors for recycling e-waste. However, the components of e-waste are complex, which can be classified as conductors, semiconductors, and nonconductors according to their conducting properties. In this work, we made a novel attempt to recover the mixtures containing cond...
Article
Full-text available
The tribo-electric effect consists in the electrification of certain materials after coming into contact with other materials. This effect may be used in conjunction with the electric field forces for electrostatically separating positivelyand negatively-tribo-charged granules that have otherwise similar size, density, magnetic properties and elect...
Article
Metal-plated plastics (MPP), which are important from the standpoint of aesthetics or even performance, are increasingly employed in a wide variety of situations in the automotive industry. Serious environmental problems will be caused if they are not treated appropriately. Therefore, recycling of MPP is an important subject not only for resource r...
Article
A serious environmental problem was presented by waste batteries resulting from lack of relevant regulations and effective recycling technologies in China. The present work considered the enhancement of waste Ni-Cd and Ni-MH batteries recycling by mechanical treatment. In the process of characterization, two types of waste batteries (Ni-Cd and Ni-M...
Article
A severe threat was posed due to improper and inefficient recycling of waste batteries in China. The present work considered the fundamental aspects of the recycling of cadmium from waste nickel-cadmium batteries by means of vacuum metallurgy separation in scale-up. In the first stage of this work, the characterization of waste nickel-cadmium batte...
Article
Quantity of waste toner cartridges has been generated following the increasing demand for printer and duplicator. Waste toner cartridge contains abundant valuable metals, plastics as well as toxic residual toner. Therefore, the recovery of waste toner cartridges is a meaningful subject, not only from waste treatment but also from environment protec...
Article
The technology industrialization was the final goal of the research. A set of automatic line without negative impact to environment for recycling waste printed circuit boards (PCB) in industry-scale was investigated in this study. The independent technologies were integrated and many problems in the process of technology industrialization were solv...
Article
The environment is seriously polluted due to improper and inefficient recycling of waste nickel-cadmium (Ni-Cd) batteries in China. The aim of this work is aimed to seek an environmentally friendly recycling process for resolving the negative impacts on environmental and human health resulting from waste Ni-Cd batteries. This work investigates the...
Article
With the high-voltage electrostatic theory and numerical analysis, the dynamics of conductive and nonconductive particles under high-voltage electrostatic coupling fields was studied. The oscillation behavior of the conductive particle between the corona electrode and ground electrode was analyzed and its oscillation amplitude was S m=(t a +t s ) ·...
Article
Electrostatic separation presents an effective and environmentally friendly way for recycling metals and nonmetals from ground waste electrical and electronic equipment (WEEE). For this process, the trajectory of conductive particle is significant and some models have been established. However, the results of previous researches are limited by some...
Article
This paper presents a theoretical analysis of the dynamics of spherical metallic particles in electrostatic separators/purifiers (ESPs). The particle equations of motion are numerically solved in two dimensions using a computational algorithm. The ESPs consist of a pair of conductor cylinder electrodes. The upper cylinder is energized by HVdc, whil...
Article
Electrostatic separation is an effective and environmentally friendly method for recycling comminuted waste printed circuit boards (PCB). As a classical separator, the roll-type corona-electrostatic separator (RTS) has some advantages in this field. However, there are still some notable problems, such as the middling products and their further trea...
Article
Waste printed circuit board (PCB) is increasing worldwide. The corona electrostatic separation (CES) was an effective and environmental protection way to recycle resource from waste PCBs. The aim of this paper is to analyze the main factor (rotational speed) that affects the efficiency of CES from the point of view of electrostatics and mechanics....
Article
Traditionally, the mixture metals from waste printed circuit board (PCB) were sent to the smelt factory to refine pure copper. Some valuable metals (aluminum, zinc and tin) with low content in PCB were lost during smelt. A new method which used roll-type electrostatic separator (RES) to recovery low content metals in waste PCB was presented in this...
Article
The printed circuit board (PCB) has a metal content of nearly 28% metal, including an abundance of nonferrous metals such as copper, lead, and tin. The purity of precious metals in PCBs is more than 10 times that of rich-content minerals. Therefore, the recycling of PCBs is an important subject, not only from the viewpoint of waste treatment, but a...
Article
The electrostatic separation is an effective method for recycle of crushed waste electrical and electronic equipment (WEEE). However, the robustness of the classical roll-type separator is vulnerable because of its sensitivity to variation of granule size. A new "two-roll type corona-electrostatic separator" was built to overcome the limitation of...
Article
A model for computing the trajectory of conducting particle from waste printed circuit board (PCB) scraps in corona electrostatic separator is established. Using analytical expression for computing non-uniformity of the electric field in the active zone of the separator and the differential method were used for computing the trajectories of conduct...
Article
Recycling of metal materials from waste printed circuit board (PCB) is one of the major applications of the electrostatic separation technologies. This paper analyzed the particle shape factor that affected the efficiency of electrostatic separation and addressed influence of the particle shape from both a computational and an experimental point of...
Article
Nonmetals reclaimed from waste phenolic cellulose paper printed circuit boards (PCBs) are used to replace wood flour in the production of phenolic molding compound (PMC). The results indicate that filling of nonmetals in PMC improves the charpy notched impact strength and heat deflection temperature (HDT) and reduces flexural strength and rasching...
Article
Printed circuit board (PCB) scrap has a metal content of nearly 28%, including an abundance of nonferrous metals such as copper, lead, and tin. The purity of precious metals in PCBs is more than 10 times that of content-rich minerals. Therefore, the recycling of PCBs is an important subject, not only from the viewpoint of waste treatment, but also...
Article
Based on the analysis of the material mechanical property of waste printed circuit boards (PCBs) and printed wiring boards (PWBs) and comparison with other crashers, a shearing machine and a hammer grinder were combined to pulverize the waste boards. The analysis on the force for hammer grinder was presented, and the technological parameters of ham...
Article
The printed circuit board (PCB) contains nearly 28% metals that are abundant non-ferrous metals such as Cu, Al, Sn, etc. The purity of precious metals in PCBs is more than 10 times higher than that of rich-content minerals. Therefore, recycling of PCBs is an important subject not only from the treatment of waste but also from the recovery of valuab...

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