Utilization of urban sewage sludge: Chinese perspectives

Chen, H; Yan, Shouke; Zl, Ye; Hj, Meng; Zhu, Yan

doi:10.1007/s11356-012-0760-0

Cited by 191 publications

(79 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The concentrations of heavy metals in sludge form the following descending series: Zn>Cu>Pb>Cr>Ni>Cd>Hg and, overall, this distribution pattern was similar with that found by other investigators for sludge produced in various WWTPs from different countries/regions: China [16,35,36], Rio de Janeiro, Brasil [37], Salamanca, Spain [38], and Thessaloniki, Greece [4].…”

Section: Metal Levels In Greek Wwtps Sludgesupporting

confidence: 87%

“…Generally, the selection of the best disposal route for the sludge from a particular treatment plant requires the identification of the most secure and environmentally acceptable final destination taking into account the local, regional and/or national conditions (technical, economical, political, geographical) [11,15,16]. Traditional disposal alternatives which have been widely tried include landfilling, soil application, incineration and sea dumping [10][11][12][13][14][17][18][19][20] and currently in Europe the most desirable use of treated sludge is in agriculture as a soil fertilizer [21].…”

Section: Introductionmentioning

confidence: 99%

“…The utilization of sewage sludge as soil fertilizer in agriculture is a viable solution for sustainable management of this waste material, as it involves the recycling of valuable non-toxic components (organic matter, nutrients, macroelements) and, in the same time, provides a low cost disposal option of the by-product [8,10,[15][16][17][18]24]. On one hand, this addition may represent a good alternative to prevent degradation of soils and to improve many physical, chemical and biological properties of soil [14,[25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Temporal variability of sewage sludge heavy metal content from Greek wastewater treatment plants

Spanos

Ene

Patronidou

et al. 2016

Ecological Chemistry and Engineering S

View full text Add to dashboard Cite

Abstract:The aim of this study was to evaluate the temporal variations of selected heavy metals level in anaerobic fermented and dewatered sewage sludge. Sewage sludge samples were collected in different seasons and years from three municipal wastewater treatment plants (WWTPs) located in Northern Greece, in Kavala (Kavala and Palio localities) and Drama (Drama locality) Prefectures. An investigation of the potential of sludge utilization in agriculture was performed, based on the comparison of average total heavy metal concentrations and of chromium species (hexavalent, trivalent) concentrations with the allowed values according to the Council Directive 86/278/EEC and Greek national legislation (Joint Cabinet Decision 80568/4225/91) guidelines. In this regard, all the investigated heavy metals (Cd, Cr, Cu, Ni, Pb, Zn, Hg) and chromium species Cr(VI) and Cr(III) have average concentrations (dry matter weight) well below the legislated thresholds for soil application, as following: 2.12 mg kg -1 Cd; 103.7 mg kg -1 Cr; 136.4 mg kg -1 Cu; < 0.2 mg kg -1 Hg; 29.1 mg kg -1 Ni; 62.0 mg kg -1 Pb; 1253.2 mg kg -1 Zn; 1.56 mg kg -1 Cr(VI) and 115.7 mg kg -1 Cr(III). Values of relative standard deviation (RSD) indicate a low or moderate temporal variability for domestic-related metals Zn (10.3-14.7%), Pb (27.9-44.5%) and Cu (33.5-34.2%), and high variability for the metals of mixed origin or predominantly resulted from commercial activities, such as Ni (42.4-50.7%), Cd (44.3-85.5%) and Cr (58.2-102.0%). For some elements the seasonal occurrence pattern is the same for Kavala and Palio sludge, as following: a) Cd and Cr: spring>summer>winter; b) Cu, Ni and Pb: winter>spring>summer. On average, in summer months (dry season) metal concentrations are lower than in spring and winter (wet seasons), with the exception of Zn. For Kavala and Palio the results demonstrate that the increased number of inhabitants (almost doubled) in summer time due to tourism does not influence the metal levels in sludge. Comparing the results obtained for similar spring-summerwinter sequences in 2007 and 2010/11 and for the spring season in 2007, 2008 and 2010, it can be noticed that, in general, the average heavy metal contents show an increasing tendency towards the last year. In all the measurement periods, the Palio sludge had the highest metal contents and Kavala sludge the lowest, leading to the conclusion that the WWTP operating process rather than population has a significant effect upon the heavy metal content of sludge. Cr(VI)/Cr(total) concentration ratios are higher for Kavala sludge in the majority of sampling campaigns, followed by Drama and Palio sludge. The metals which present moderate to strong positive correlation have common origin, which could be a domestic-commercial mixed source.

show abstract

Section: Metal Levels In Greek Wwtps Sludgesupporting

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Temporal variability of sewage sludge heavy metal content from Greek wastewater treatment plants

Spanos

Ene

Patronidou

et al. 2016

Ecological Chemistry and Engineering S

View full text Add to dashboard Cite

show abstract

“…Moreover, direct wastewater discharge from paper mills around Dongguan was suggested as a point source for soil LABs, but it might be confined in a small area. Although 45% of the sewage sludge produced was utilized in agricultural soils of China (Chen et al, 2012), the extremely poor correlation of ΣLAB levels and TOC ( Fig. S3a; p b 0.05) dismissed the application of composted sewage sludge in soils as the main input route for soil LABs.…”

Section: Transport Mechanismsmentioning

confidence: 99%

Utility of soil linear alkylbenzenes to assess regional anthropogenic influences with special reference to atmospheric transport

Wei

Bao

Guo

et al. 2014

Science of The Total Environment

View full text Add to dashboard Cite

“…Anaerobic technologies should be considered for domestic wastewater treatment as an alternative to more conventional aerobic technologies in most developing countries for a variety of reasons. Anaerobic technologies already have been applied successfully for treatment of a number of waste streams, including low strength wastewaters such as domestic wastewater, particularly under tropical conditions 9, 10 . Anaerobic treatment can be carried out with technically simple setups, at any scale and almost any place.…”

Section: Introductionmentioning

confidence: 99%

Treatment of milk wastewater using up-flow anaerobic packed bed reactor

Bhuyar

Suke

Dawande

2015

Polish Journal of Chemical Technology

View full text Add to dashboard Cite

An up-fl ow anaerobic packed bed (UAPB) bioreactor has been designed on a laboratory-scale and used for treatment of domestic milk wastewater (MWW). The UAPB bioreactor was operated under mesophilic temperature (37-45 o C) and reactor performance evaluated at various organic loading rates of MWW effl uent at hydraulic retention times (HRT) of 1, 2, and 3 d based on the removal of organic matter COD, BOD, SS, pH changes and biogas production. The kinetic parameters were estimated using the experimental data to develop a reactor model. Empirical relations were generated for the characteristics like COD, BOD, and SS using modeling equations. This study proved that the UAPB reactor performance is excellent for treating domestic MWW and easily biodegradable dairy wastewater infl uent. Hence, this system can operate at low costs, making it suited for use in the developing countries and rural areas.

show abstract

Utilization of urban sewage sludge: Chinese perspectives

Abstract: It is necessary to formulate a standard suitable for the utilization of sewage sludge in China.

Cited by 191 publications

References 50 publications

Temporal variability of sewage sludge heavy metal content from Greek wastewater treatment plants

Temporal variability of sewage sludge heavy metal content from Greek wastewater treatment plants

Utility of soil linear alkylbenzenes to assess regional anthropogenic influences with special reference to atmospheric transport

Treatment of milk wastewater using up-flow anaerobic packed bed reactor

Contact Info

Product

Resources

About