Determination of PCBs and LABs in Sewage Sludge from a Wastewater Treatment Plant

Moreda, J.M.; Arranz, A.; Betoño, Susana Fdez. de; Cid, A. A. Peláez; Arranz, J. F.

doi:10.1080/09593331908616749

Cited by 3 publications

(3 citation statements)

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“…In the investigated sludge samples, the I/E ratios ranged from 0.7 to 2.5 (Table 3) suggesting only a low to moderate biodegradation of LABs in the studied treatment plants. Also these values are comparable to other studies dealing with sewage sludge or suspended solids in wastewaters [36,38].…”

Section: Common Organic Pollutantssupporting

confidence: 90%

“…LABs are in contrast to the sulfonated derivatives poorly degradable and are therefore suitable anthropogenic marker for the entry of urban wastewaters into aquatic systems. Total LABs concentrations as determined in this study (5-55 mg kg −1 , Table 2) are comparable to those of other studies conducted with sewage sludge [35,36]. The I/E ratio (ratio of internal to external isomers) is indicative for the extent of the LABs degradation [37].…”

Section: Common Organic Pollutantssupporting

confidence: 85%

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Structural diversity of organic contaminants in sewage sludge: a comparison of sewage fingerprints from Germany and China

et al. 2021

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Sewage sludge is formed during wastewater treatment and in recent years, the amount of sewage sludge increased rapidly all over the world. This sewage sludge is attractive for usage in agriculture as an inexpensive nitrogen and phosphorus fertilizer. However, there is only very limited knowledge about the spectrum of organic pollutants that might occur in sewage sludge and is probably posing a threat to the environment. We therefore conducted GC–MS based non-target screening analyses in order to identify a wide spectrum of organic contaminants in sludge samples from several wastewater treatment plants and to figure out corresponding finger-prints of pollution. The plants are located in Germany and China and have various capacities ranging from 35,000 to 1.1 million population equivalents. The special focus was to reveal information on the structural variety of individual organic compounds in sludge samples from the two countries. Several emerging pollutants including some fragrances, pharmaceutical educts, vitaminoids, technical additives were identified accompanied by compounds of biogenic origin. Some of these compounds have rarely been reported as constituents of sewage sludge to date and, consequently, are relevant candidates for more specific assessments including the ecotoxicological long-term effects. Based on the results of this study, it seems mandatory to establish non-target screening analyses on a regularly base as a tool for a comprehensive identification of the variety of anthropogenic organic constituents. Following, such contaminant spectrum can act as basis for further environmental risk assessments as well as to provide individual fingerprints for evaluation of impacts on ecosystems.

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Section: Common Organic Pollutantssupporting

confidence: 90%

Section: Common Organic Pollutantssupporting

confidence: 85%

Structural diversity of organic contaminants in sewage sludge: a comparison of sewage fingerprints from Germany and China

et al. 2021

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“…Moreover, sludge can be considered a slow-release fertilizer as a result of its high concentration of organic nitrogen (N) (Davis, 1989;Kocaer et al, 2003). Plant-available nutrients such as N and phosphorous (P) in wastewater sludge could be used as a replacement for conventional fertilizers in agricultural production (Casado-Vela et al, 2006;Moreda et al, 1998). Therefore, wastewater sludge is recycled for agricultural purposes in many countries.…”

mentioning

confidence: 99%

Effects of Wastewater Sludge Topdressing on Color, Quality, and Clipping Yield of a Turfgrass Mixture

Bilgili¹,

Topac-Sagban²,

Sürer³

et al. 2011

horts

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The objectives of the present study were to determine the effects of the rate and timing of the application of sun-dried wastewater sludge from a food processing company's wastewater system on turfgrass growth and quality. The results were compared with those obtained with ammonium nitrate, and changes in the concentration of heavy metals and the presence of fecal coliform in turf soils after sun-dried wastewater sludge application were determined. The rate and the timing of sun-dried wastewater sludge and ammonium nitrate applications affected the turf color, quality, and clipping yield. Monthly fertilization resulted in a more uniform color and turf quality than infrequent spring and fall fertilization. Compared with the background values of base soils, heavy metals did not accumulate in sun-dried wastewater sludge-amended soils over the test period. Fecal coliform was not detected in sludge-amended soil samples, indicating that bacteria regrowth did not occur during the study period.

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The application of sewage sludge as an expanding agent in the production of lightweight expanded clay aggregate mass

Latosińska

Żygadło

2011

Environmental Technology

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Sewage sludge can be used as an expanding agent in the production of lightweight expanded clay aggregate (LECA) mass. The addition of sewage sludge increases the total porosity and decreases the bulk density of a sinter. The addition of sewage sludge to a raw material used in the production of LECA enabled a decrease in the burning temperature for the maintained operational parameters of a lightweight aggregate. The optimum content of sewage sludge added to a raw material used in LECA production was 5% to 15% of dry mass. The addition of sewage sludge in an amount of 5% and 10% caused an increase in closed porosity.

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Determination of PCBs and LABs in Sewage Sludge from a Wastewater Treatment Plant

Cited by 3 publications

References 0 publications

Structural diversity of organic contaminants in sewage sludge: a comparison of sewage fingerprints from Germany and China

Structural diversity of organic contaminants in sewage sludge: a comparison of sewage fingerprints from Germany and China

Effects of Wastewater Sludge Topdressing on Color, Quality, and Clipping Yield of a Turfgrass Mixture

The application of sewage sludge as an expanding agent in the production of lightweight expanded clay aggregate mass

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