Exposure to bisphenol A and its substitutes, bisphenol F and bisphenol S from canned foods and beverages on Chinese market

Advances in Bioremediation of Emerging Contaminants from Industrial Wastewater by Oxidoreductase Enzymes.

Heterojunction photocatalysts for the removal of nitrophenol: A systematic review.

Considering the water shortage, one of the reliable sources of water available is wastewater. Traditional methods of pollutants from wastewater treatment do not always meet the goals of resource sustainability. Using microalgae to treat pollutants from different wastewater is feasible, and microalgae biofilm technology is expected to alleviate the above shortcomings. This review mainly focuses on the algal biofilm structure and discusses the effects of light, substrate, temperature, and other possible factors on biofilms formation. Biomass dispersed in liquid media can be easily harvested by scraping microalgal biofilm systems that recover microalgae. Algae-bacteria biofilms can actually provide self-sustaining oxygen supply while removing organic matter, heavy metals, and antibiotics, thereby greatly reducing the cost of microalgae cultivation. The symbiosis of microalgae and bacteria is conducive to the formation of algal biofilms, which has greater environmental and economic benefits than monocultures. Therefore, microalgae biofilm can offer a significant theoretical reference for resource utilization from wastewater biofilm treatment. 

The intrinsic characteristics of microalgae biofilm and their potential applications in pollutants removal — A review

Water pollution has become a critical issue because of the Industrial Revolution, growing populations, extended droughts, and climate change. Therefore, advanced technologies for wastewater remediation are urgently needed. Water contaminants are generally classified as microorganisms and inorganic/organic pollutants. Inorganic pollutants are toxic and some of them are carcinogenic materials, such as cadmium, arsenic, chromium, cadmium, lead, and mercury. Organic pollutants are contained in various materials, including organic dyes, pesticides, personal care products, detergents, and industrial organic wastes. Nanostructured materials could be potential candidates for photocatalytic reduction and for photodegradation of organic pollutants in wastewater since they have unique physical, chemical, and optical properties. Enhanced photocatalytic performance of nanostructured semiconductors can be achieved using numerous techniques; nanostructured semiconductors can be doped with different species, transition metals, noble metals or nonmetals, or a luminescence agent. Furthermore, another technique to enhance the photocatalytic performance of nanostructured semiconductors is doping with materials that have a narrow band gap. Nanostructure modification, surface engineering, and heterojunction/homojunction production all take significant time and effort. In this review, I report on the synthesis and characterization of nanostructured materials, and we discuss the photocatalytic performance of these nanostructured materials in reducing environmental pollutants. 

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Recent Progress in Photocatalytic Removal of Environmental Pollution Hazards in Water Using Nanostructured Materials

Bioremediation of phenolic pollutants by algae - current status and challenges.

Morpholine is a common chemical used as emulsifier in the preparation of wax coatings for some fruit to help them remain fresh and protect against insects and fungal contamination. It has been reported that morpholine has acute toxic effects on rodents. In the present study, morpholine concentrations were analysed in fruits (citrus fruits, apples, strawberries and grapes) and juices (apple juice and orange juice) in order to determine dietary exposure among the Chinese population. A total of 732 fruit and juice samples were collected during 2015–2016, which covered major foods in China. Fruit and juice consumption data were taken from China National Nutrient and Health Survey (2002) and include data from 16,407 fruit or juice consumers. It was found that mean dietary exposure to morpholine residues from fruits and/or juices for general Chinese consumers and children 2–6 years old were 0.42 and 1.24 µg/kg bw/day, respectively. The 97.5% intake in general Chinese consumers and children 2–6 years old...

Ping-Gu Wu

Papers

Bioremediation of phenolic pollutants by algae - current status and challenges.

Concentration of morpholine residues in major fruits and juices and its dietary exposure in China.