Quantitative evaluation of heavy metals’ pollution hazards and estimation of heavy metals’ environmental costs in leachate during food waste composting

Chu, Zhujie; Fan, Xiuhua; Wang, Wenna; Huang, Wei‐Chiao

doi:10.1016/j.wasman.2018.11.031

Cited by 95 publications

(28 citation statements)

References 43 publications

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“…Figure 2f shows the leachates' TDS levels in the two sites compared to the regulatory body maximum limit. Results revealed that the leachates in Elelenwo dumpsites, Rivers State, Nigeria are polluted, and under the current scenario of increasing water sheds pollution (Abbas et al, 2018;Ali et al, 2019;Barbosa Segundo et al, 2019;Camaño Silvestrini et al, 2019;Čelić et al, 2019;Chu et al, 2019;Costa et al, 2019;Fiorentino et al, 2019;Iqbal, 2016;Iqbal et al, 2019;Joshi and Gogate, 2019;Li et al, 2019;Ma et al, 2019;Majdinasab and Yuan, 2019;Nzediegwu et al, 2019;Poblete et al, 2019;Qi et al, 2019;Wang et al, 2019a;Wang et al, 2019b;Yang et al, 2019;Zhang et al, 2019), there is need to monitor water bodies' quality regularly and adopt the efficient methods to treat the wastewater www.bosaljournals/chemint/ editorci@bosaljournals.com (Caicedo et al, 2019;Hernández-Chover et al, 2018;Mohammadzadeh Pakdel and Peighambardoust, 2018;Salgot and Folch, 2018;Yu et al, 2019).…”

Section: Resultsmentioning

confidence: 99%

Toxicological symptoms and leachates quality in Elelenwo Rivers State, Nigeria

Int¹

2019

Preprint

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The toxicological symptoms prevalent and reported in Elelenwo area were taken into consideration and the leachates quality of its notable dumpsites was investigated for possible links. In situ measurements were made and standard procedures followed for analyses of lead, cadmium and nickel as well as other physicochemical load of the leachates. The results obtained were compared with various guidelines set by some notable regulatory bodies. The outcome showed more than 100 folds toxicity levels above the various benchmarks especially for lead, cadmium and nickel. These dumpsites as a result are environmental hotspots for pollution distribution to nearby surface waters, air and wastewaters bodies as well as the ground water. There is a strong link between reported toxicological symptoms among inhabitants of Elelenwo and Leachates toxicity from these dumpsites and there is emergency need for clean-up action by appropriate authorities.

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Section: Resultsmentioning

confidence: 99%

Toxicological symptoms and leachates quality in Elelenwo Rivers State, Nigeria

Int¹

2019

Preprint

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“…Heavy metals are generally very harmful. For example, hexavalent chromium can invade animals through digestive tract, respiratory tract, skin and mucous membrane, and accumulate in liver, kidney and endocrine gland [41][42][43]. Lead is difficult to be eliminated once it enters the human body.…”

Section: Heavy Metalmentioning

confidence: 99%

Application and development of pyrolysis technology in petroleum oily sludge treatment

Wang

Gong

Wang

et al. 2020

Environmental Engineering Research

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With the enhancement of public awareness of environmental protection, the harm of oily sludge has gradually been paid attention to. As a kind of dangerous solid waste, the arbitrary disposal of oily sludge will cause quite serious harm to both the environment and human beings. Research on the treatment methods of oily sludge has become a hot spot recently. At present, treatment methods of oily sludge are various, mainly including pyrolysis, direct combustion, freeze-thaw treatment, biological treatment, solvent extraction, thermochemical cleaning, ultrasound-assisted treatment or joint technology, etc. Based on the consideration of economic benefits, social benefits and treatment difficulties, pyrolysis has been considered to be the most appropriate method for oily sludge treatment. Syngas, liquid oil and char can be obtained from pyrolysis of oily sludge, which can meet different needs. In this paper, the pyrolysis technology of oily sludge is reported in detail, including pyrolysis methods, operational parameters and pyrolysis products of oily sludge. On the basis, the advantages and limitations of oily sludge pyrolysis technology are discussed, together with the report of feasibility of pyrolysis technology of oily sludge. Moreover, the development trend of pyrolysis technology of oily sludge is prospected for the future work.

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“…L'origine des contaminations anthropiques peut être liée, à l'usage excessif de fertilisants phosphatés, l'infiltration des nappes phréatiques et sols par les lixiviats de compostage des déchets urbains. Dans ce cas, c'est le Cadmium qui prédomine comme éléments majeur (Chu et al, 2019). La proximité de trafic routier est source de pollution surtout par le Plomb et le Cadmium (Akbar et al, 2006) L'irrigation des sols par les eaux usées est un facteur de contamination surtout par le Plomb, Cuivre, et Zinc.…”

Section: Analyses Physico-chimiques 5°) Analyse Physiqueunclassified

Etat Environnemental Des Sols De La Region De Casablanca

Benazzouz

Talbi

Saber³

2020

ESJ

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Chemical pollution in the peri-urban area of Casablanca impacts the quality of agricultural soils.Five sites from the region of Casablanca have been studied: Oued Hassar, Oued Merzeg, Bouskoura, Benslimane-Mohammedia, and Bouznika.The objective is the comparative analysis of five trace metal elements in soils in order to assess the environmental state and to preserve the potential and harmlessness of sites in the Casablanca region.The environmental state of these sites requires knowledge of the physico-chemical parameters of the soil (PH, Calcium carbonates, organic matter), following the degradation of irrigation water by the use of wastewater or the impact of chemical pollution.The environmental state studied through metallic trace elements shows that the soils of sites irrigated by Oued Hassar have cadmium and lead contents which exceed the standards recommended by the World health organisation (WHO), respectively 2 ppm and 100 ppm.The contents are respectively 2,91 ppm and 137,61ppm.The copper contents in the soils irrigated by the Merzeg wadi remain the highest.The contents are 896,62 ppm. The zinc contents in soils near the Bouskoura cement plant are predominant compared to the other elements.The contents are 537,22 ppm. In Mohammedia-Benslimane soils, the cadmium contents are very variable, moderate and can exceed 2 ppm. Lead levels rarely exceed 100 ppm.The statistical study by the Anova test shows significant differences in the contents of metallic trace elements except for nickel.

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Quantitative evaluation of heavy metals’ pollution hazards and estimation of heavy metals’ environmental costs in leachate during food waste composting

Cited by 95 publications

References 43 publications

Toxicological symptoms and leachates quality in Elelenwo Rivers State, Nigeria

Toxicological symptoms and leachates quality in Elelenwo Rivers State, Nigeria

Application and development of pyrolysis technology in petroleum oily sludge treatment

Etat Environnemental Des Sols De La Region De Casablanca

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