Effects of municipal waste compost and sewage sludge on proton binding behavior of humic acids from Portuguese sandy and clay loam soils

Pedra, Filipe; Plaza, César; García-Gil, Juan Carlos; Polo, Alfredo

doi:10.1016/j.biortech.2007.05.043

Cited by 20 publications

(14 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Tapia et al (2010) attributed the capacity of sludge to immobilize Cd to high degree of humification of organic matter, indicat- Sharma et al (2010) ing that humic acid performs an important function in immobilizing heavy metals. Pedra et al (2008) also found higher binding affinities between humic acids and heavy metal ions in sludgeamended soils than control, which is biochemical evidence for the effects of sludge on heavy metal bioavailability. All the same, there is still controversy on whether organic matter derived from sludge is responsible for regulating heavy metal bioavailability and even the amounts taken up by plants.…”

Section: Organic Matter Plays Crucial Role In Availability Of Heavy Mmentioning

confidence: 61%

Achilles heel of environmental risk from recycling of sludge to soil as amendment: A summary in recent ten years (2007–2016)

Liu

2016

Waste Management

View full text Add to dashboard Cite

a b s t r a c tRecycling sludge as a soil amendment has both positive and negative effects because of its enrichment in both nutrients and contaminants. So far, the negative effect has to be extensively investigated that the severities of different types of contaminants also remain unclear. The environmental behavior and risk of organic contaminant and pharmaceuticals, heavy metal and salt as well as pathogenic microorganisms brought by sludge amendment are summarized and discussed here. Organic contaminants and pharmaceuticals are typically found at low concentrations in sludge, the risks from sludge-amended soil decrease over time owing to its biodegradability. On the other hand, application of sludge generally increases soil salinity, which may cause physiological damage to plants grown in sludge-amended soil. In some extent, this negative effect can be alleviated by means of dilution; however, greater attention should be paid to long term increasing possible risk of eutrophication. Heavy metal (particularly of mobile heavy metals, such as Cd) with high concentrations in sludge and soil receiving considerable sludge can cause its incremental abundance in soil and crop contamination, further posing risks to humans, but most cases showed that there remained not excessive in heavy metal caused by sludge amendment. It is worth noting that increasing soil organic matter content may reduce transfer of heavy metal from soil to crops, but not restrict its uptake by crops at all. Combined literature together, it is summarized that heavy metal becomes a relatively severe bottleneck in recycling of sludge as soil amendment due to its nonbiodegradability and potential damage to health by adventuring contamination from agricultural products. Particular attention should therefore be paid to long term monitoring the change of heavy metals concentration in sludge amended soil.

show abstract

Section: Organic Matter Plays Crucial Role In Availability Of Heavy Mmentioning

confidence: 61%

Achilles heel of environmental risk from recycling of sludge to soil as amendment: A summary in recent ten years (2007–2016)

Liu

2016

Waste Management

View full text Add to dashboard Cite

show abstract

“…Incremental HA, which functions as strong aggregation, weakens the affinity to Cu, accounting for the difference in competitive sorption caused by functional groups (Adani and Tambone, 2005;Oliver et al, 2005). In addition, high HA in sludge can be characterized by the lower acidic functional group content relative to soil (Pedra et al, 2008), further confirming that control of Cu was lost when sludge was mixed together with soil. Therefore, the degradation ratio of organic matter was the only superficial indicator that could be used to predict the proportion of the active fraction in the total amount of Cu, indicating that DP would be a more effective and accurate indicator.…”

Section: Discussionmentioning

confidence: 94%

Relationship between organic matter humification and bioavailability of sludge-borne copper and cadmium during long-term sludge amendment to soil

Liu

2016

Science of The Total Environment

View full text Add to dashboard Cite

“…In fact, SOM is the soil component most important in pesticide retention. [48,50,51] Pedra et al [52] reported that soil amendments reclaimed degraded soils and supplied plant nutrients to growing plants. Accordingly, soil amendments could be used to intercept pesticide-contaminated runoff from agricultural fields and provide a potential solution to pesticide contamination of surface and seepage water from farmlands.…”

Section: Resultsmentioning

confidence: 99%

Impact of soil amendments on metribuzin and DCPA half-lives and mobility into agricultural runoff water

Antonįous

Turley

Hill

2014

Journal of Environmental Science and Health, Part B

View full text Add to dashboard Cite

The retention and behavior of two herbicides, metribuzin [4-amino-6-tert-butyl-4, 5-dihydro-3-methylthio-1, 2, 4-triazin-5-one] and DCPA [1,2,3,5, dimethyl] ester, in runoff and seepage water from agricultural fields were investigated. The objectives of this investigation were to: (i) determine the dissipation and half-life (T 1/2 ) of metribuzin and DCPA herbicides in soil under three management practices: chicken manure (CM), sewage sludge (SS), and no-mulch native soil (NM); (ii) monitor herbicides residues in runoff and infiltration water following addition of soil amendments; and (iii) determine the impact of soil amendments on the transport of NO 3 , NH 4 , and PO 4 from soil into surface and subsurface water. Half-life (T 1/2 ) values of metribuzin were 24, 18, and 12 d in CM, SS, and NM treatments, respectively. Similarly, T 1/2 values of DCPA were greater in CM and SS incorporated soil (45.8 and 52.2 d, respectively) compared to NM native soil (26.2 d). Addition of CM and SS to native agricultural soil increased water infiltration, lowering runoff water volume and herbicide residues in runoff following natural rainfall events. We concluded that soil amendments could be used to intercept pesticide-contaminated runoff from agricultural fields. This practice might provide a potential solution to pesticide contamination of surface and seepage water from farmlands.

show abstract

Effects of municipal waste compost and sewage sludge on proton binding behavior of humic acids from Portuguese sandy and clay loam soils

Cited by 20 publications

References 18 publications

Achilles heel of environmental risk from recycling of sludge to soil as amendment: A summary in recent ten years (2007–2016)

Achilles heel of environmental risk from recycling of sludge to soil as amendment: A summary in recent ten years (2007–2016)

Relationship between organic matter humification and bioavailability of sludge-borne copper and cadmium during long-term sludge amendment to soil

Impact of soil amendments on metribuzin and DCPA half-lives and mobility into agricultural runoff water

Contact Info

Product

Resources

About