Concentrations and distribution of synthetic musks and siloxanes in sewage sludge of wastewater treatment plants in China

Liu, Nannan; Shi, Yunfeng; Li, Wenhui; Xu, Lin; Cai, Yaqi

doi:10.1016/j.scitotenv.2013.12.124

Cited by 69 publications

(22 citation statements)

References 35 publications

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“…In contrast, PDMS is non-volatile and indissoluble, so it is generally adsorbed on sediment or sludge [3]. The siloxanes is reported to have a stable chemical and biological properties like low flammability and water repelling properties, high thermal stability and low toxicity, and it will stay 10 d-30 d in the atmosphere for VMS [5].…”

Section: Siloxanes Characteristicsmentioning

confidence: 99%

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Techniques for Siloxanes Removal from Biogas Produced by Sewage Sludge Digestion

Zhang¹,

Cui²,

Zhu³

et al. 2017

dteees

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Abstract. Biogas production from sewage sludge digestion is one of the most effective methods for sewage sludge recycling. During the transformation from biogas to biomethane, the unfavorite component must be removed. As a trace amount of undesirable component, the siloxanes in biogas will damage the biogas power generation equipment, which is disadvantage to the biogas utilization. This paper stated the characteristics of siloxanes and the siloxanes removal technologies. The siloxanes removal technologies from biogas, including adsorption on solid material, gas-liquid absorption, condensation, membrane separation, biological treatment, were reviewed and compared. Otherwise, the pre-aeration on anaerobic digestion of sludge was introduced as an alternative for siloxanes removal before digestion.

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Section: Siloxanes Characteristicsmentioning

confidence: 99%

“…The siloxanes is a widely-used and greatlyproduced chemical in many industries, and it has an high level in environment [3,4,5]. The wastewater network is one of the most important destinations of siloxanes.…”

Section: Introductionmentioning

confidence: 99%

Techniques for Siloxanes Removal from Biogas Produced by Sewage Sludge Digestion

Zhang¹,

Cui²,

Zhu³

et al. 2017

dteees

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“…Siloxanes are a relatively new group of PCPs, consisting of a polymeric organic silicone that comprises a backbone of alternating silicon-oxygen units with an organic chain attached to every silicon atom, conferring them a low surface tension, physiologic inertness, high thermal stability and a smooth texture [115]. Siloxanes are used in a broad range of consumer products (antiperspirants, skin-care creams, hair conditioners and colour cosmetics), as well as in industrial ones, such as automotive polishes, fuel additives and antifoaming agents.…”

Section: Siloxanesmentioning

confidence: 99%

“…They are considered high production volume chemicals, having annual productions for some of them of 45-227 thousand tons worldwide; however, recent reports raise concern about the potential toxic effects of cyclic siloxanes [116]. Siloxanes are likely to be discharged into sewage systems through the use of "rinse-off" products and partially adsorbed onto sludge in WWTPs due to their high Kow and released to the aquatic environment through wastewater discharges [117][118][119], having also been found in sewage sludge [115,119] and sediment [119,120]. The siloxane family includes octamethylcyclotetrasiloxane (D4), decamethylcyclopentasiloxane (D5), dodecamethylcyclohexasiloxane (D6) and tetradecamethylcycloheptasiloxane (D7) [118].…”

Section: Siloxanesmentioning

confidence: 99%

Introduction: Personal Care Products in the Aquatic Environment

Molins-Delgado

Díaz˗Cruz

Barceló

2014

The Handbook of Environmental Chemistry

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This chapter presents an overview of the main aspects relating to the occurrence and impact of ingredients in personal care products to the aquatic environment: methodologies of analysis, prevalence data, elimination processes, threats to the aquatic ecosystem, effects on biota and legislation with a special focus in European regulation. Water is a valuable resource for the environment as well as for human activities. Although it covers most of the Earth's surface, the amount of usable water is finite. Since ancient times until now, the use of water in human activities has been rapidly increasing along with the increase of the population, producing a continuous release of pollutants into the aquatic environment. Personal care products are a widely used group of substances that have been raising concerns during the last decades due to its continuous release into the environment and its proven effects (mostly on in vitro and in vivo assays) as a threat to all kinds of living organisms. Recent studies suggest that its continuous application on the skin or the intake of contaminated food may cause some concerning hazardous effects in human beings. In order to ensure the protection of this key ecosystem, a series of worldwide initiatives have been taking place during the last two decades, impelling monitoring programmes and governmental regulations worldwide. The common grounds of the European Union establish a series of regulations, such as the Water

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“…Moreover, sewage treatment plants are not always effective in removing chemicals used as cosmetic ingredients, as shown, for example, with synthetic musks [3,4], perfluoroalkyls compounds [5], some organic UV-filters [6] and microplastics [7]. Another object of concern is that some of these products can accumulate in sewage sludge during wastewater treatment and then enter the environment because of the common practice of using sludge as a fertilizer on crops [8].…”

Section: Introductionmentioning

confidence: 99%

Cosmetic Ingredients as Emerging Pollutants of Environmental and Health Concern. A Mini-Review

2017

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Cosmetic and personal care products are used in huge quantities throughout the world; as a result of their regular use, they are continuously released into the environment in very large amounts. Many of these products are biologically active and are characterized by persistence and bioaccumulation potential, posing a threat to ecosystem and human health. On the basis of the most recent scientific literature available on this subject, this paper provides an overview of some cosmetic ingredients that are considered environmental emerging pollutants of particular concern such as UV filters, some preservatives (parabens, triclosan), and microplastics.

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Concentrations and distribution of synthetic musks and siloxanes in sewage sludge of wastewater treatment plants in China

Cited by 69 publications

References 35 publications

Techniques for Siloxanes Removal from Biogas Produced by Sewage Sludge Digestion

Techniques for Siloxanes Removal from Biogas Produced by Sewage Sludge Digestion

Introduction: Personal Care Products in the Aquatic Environment

Cosmetic Ingredients as Emerging Pollutants of Environmental and Health Concern. A Mini-Review

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