Corrigendum to “Removal of trace organic pollutants (pharmaceuticals and pesticides) and reduction of biological effects from secondary effluent by typical granular activated carbon” [Sci. Total Environ. 749 (2020) 141611]

2021 ◽  
Vol 767 ◽  
pp. 145461
Author(s):  
Lei Tang ◽  
Xiaoyan Y. Ma ◽  
Yongkun Wang ◽  
Shiying Zhang ◽  
Kai Zheng ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Organic Pollutants ◽  
Biological Effects ◽  
Granular Activated Carbon ◽  
Secondary Effluent ◽  
Trace Organic Pollutants ◽  
Trace Organic

A short overview of the state of the art and perspectives on the main basic factors hindering the development of photocatalytic treatment of water

2014 ◽  
Vol 15 (1) ◽  
pp. 1-10 ◽  
Author(s):  
Pierre Pichat
Keyword(s):  
Photocatalytic Activity ◽  
Activated Carbon ◽  
Organic Pollutants ◽  
Liquid Water ◽  
State Of The Art ◽  
Chemical Elements ◽  
Solar Irradiation ◽  
Fundamental Limitations ◽  
Trace Organic Pollutants ◽  
Trace Organic

This brief overview focuses on three of the main basic phenomena limiting the applications of photocatalysis using semiconductors for the treatment of water, so that this technology has really not gone beyond the demonstration stage aside from niche applications. These phenomena are: the recombination of photogenerated charges; the adsorption of trace organic pollutants; the spectral range of photocatalytic activity. The accomplishments and failures of the various and numerous attempts to overcome these fundamental limitations are summarized and discussed. The emphasis is on the methods susceptible to improve the use of photons, including those in the visible domain to better use solar irradiation if applicable, and to facilitate the contact between the semiconductor and the trace organic pollutants in liquid water. Despite numerous studies, these limitations have not yet been overcome for water purification, because additionally the photocatalysts must contain chemical elements that are both innocuous and inexpensive. However, combinations of TiO2 and activated carbon might provide materials of interest.

Preparation and Photocatalytic Property of TiO2/C

2011 ◽  
Vol 399-401 ◽  
pp. 662-665
Author(s):  
Li Hua Tian ◽  
Xia Liu ◽  
Hui Tao Liu ◽  
Yuan Gao
Keyword(s):  
Organic Pollutants ◽  
Indoor Air ◽  
Photocatalytic Property ◽  
Air Purification ◽  
Hydrothermal Conditions ◽  
Adsorption Ability ◽  
Carbon Microsphere ◽  
Strong Adsorption ◽  
Trace Organic Pollutants ◽  
Trace Organic

Carbonaceous polysaccharide microsphere with strong adsorption ability has been successfully synthesized under hydrothermal conditions, using glucose as the carbon source. The carbon microsphere (CMS) proved to be an effective adsorbent for the removal of formaldehyde. The obtained TiO2/C nanocomposite proved to be more favorable in degrading organic pollutants than that of naked TiO2. The research is expected to be useful in industrial application for the indoor air purification and removing of trace organic pollutants in water.

Trace Organic Pollutants Emission From Large-Scale Circulating Fluidized Bed Incinerators of Co-Firing Chinese MSW and Coal

2005 ◽  
Author(s):  
Jian-Hua Yan ◽  
Sheng-Yong Lu ◽  
Yue-Ling Gu ◽  
Xu-Guang Jiang ◽  
Xiao-Dong Li ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Organic Pollutants ◽  
Aromatic Hydrocarbons ◽  
Ambient Air ◽  
Environmental Evaluation ◽  
Dioxin Emission ◽  
Pollutants Emission ◽  
Polycyclic Aromatic ◽  
Trace Organic Pollutants ◽  
Trace Organic

Complex components, high moisture and low caloric value of raw Chinese MSW (Municipal Solid Waste) lead to the difficulties of keeping stable burning and low pollutant emission. Differential Density Circulated Fluidized Bed (DDCFB) incinerator was first developed by Zhejiang University to overcome such difficulties. The research of organic pollutants, especially dioxins and polycyclic aromatic hydrocarbons emission and control from MSW incinerators has been carried out in ITPE since 1998. The aim of this paper is to provide the scheme of a new co-firing CFB incineration technology, and useful data for environmental evaluation of trace organic pollutants emission from incinerators. The art of co-firing CFB is presented briefly in the first part of this paper. The dioxin content in original Chinese MSW is estimated to be 10 pg I-TEQ/g based on the data from Abad et al. Several test runs are conducted in a real-scale (150ton/day) incinerator co-firing MSW and coal to investigate dioxins and polycyclic aromatic hydrocarbons emission to ambient air. Test results show that dioxins input into the incinerator is estimated around 300∼600 mg I-TEQ/y, dioxins output is estimated 3∼100 mg I-TEQ/y, and dioxins emitted to ambient air is around 0.1∼15mg I-TEQ/y. It seemed that most of dioxins in original waste are decomposed by incineration process. For seventeen priority PAHs, its emission to ambient air is around 200∼4160g/y for co-firing runs, which is much more than 80g/y for coal combustion only. This suggests that PAHs emission to ambient air needed to be more concerned than dioxins. That is to say, PAHs emission regulatory should be proposed as soon as possible to restrict all incinerators. Several new incinerators (200 tons/day per unit and 300 tons/day per unit) were built by using new Co-firing CFB technology in past few years. From the environmental evaluation report, dioxins emission in stack gas is in range of 0.0025∼0.06 ng I-TEQ/Nm3, which seemed far below the European limit. The annual dioxin emission to air for 200ton/day or 300 t/d units is around 3∼6 mg I-TEQ. It shows that co-firing CFB incinerator is capable of reducing dioxin emission effectively. Based on industrial demonstration experience of new co-firing CFB incineration technology, it has been proven environmental friendly method for thermal treatment of MSW in developing countries. Some reasons for low dioxin emission of co-firing processes are discussed in this paper.

Trace organic pollutants in the southeast estuarine environments of China

2000 ◽  
Vol 35 (10) ◽  
pp. 1833-1847 ◽  
Author(s):  
Huasheng Hong ◽  
Xinhong Wang ◽  
Li Xu ◽  
Weiqi Chen ◽  
Luoping Zhang ◽  
...  
Keyword(s):  
Organic Pollutants ◽  
Trace Organic Pollutants ◽  
Trace Organic

Knitting aromatic polymers for efficient solid-phase microextraction of trace organic pollutants

2016 ◽  
Vol 1450 ◽  
pp. 9-16 ◽  
Author(s):  
Shuqin Liu ◽  
Qingkun Hu ◽  
Juan Zheng ◽  
Lijun Xie ◽  
Songbo Wei ◽  
...  
Keyword(s):  
Organic Pollutants ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Aromatic Polymers ◽  
Trace Organic Pollutants ◽  
Trace Organic
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