Use of dewatered municipal sludge on Canna growth in pot experiments with a barren clay soil

Li, Shugeng; Ke-fang, Zhang; Zhou, Shaoqi; Zhang, Liqiu; Qiuli, Chen

doi:10.1016/j.wasman.2008.12.007

Cited by 29 publications

(12 citation statements)

References 47 publications

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“…Alcantara et al (2009) found that amendment of sludge lasting five years increased the Cr, Cu, Ni and Zn concentrations in soil but that the final metal concentrations were unlikely to cause environmental pollution risk. Li et al (2009) found that sludge application only for four months increased the Cd, Cr, Cu, Ni, Pb and Zn concentrations in sludge amended soil. The results by Carbonell et al (2009) indicated that sludge amendment at the highest rate tested for consecutive twenty-one years caused statistically significant increases in the Cd, Cu, Hg and Zn concentrations in the soil.…”

Section: Effects Of Sludge Amendment On Heavy Metal Concentrations Inmentioning

confidence: 91%

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

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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.

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Section: Effects Of Sludge Amendment On Heavy Metal Concentrations Inmentioning

confidence: 91%

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

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“…Singh and Agrawal (2010) reported sewage sludge amendment rates above 4.5 kg m -2 increased the yield of rice. The dewatered municipal sludge application in the range of 165-495 t/ha was found to be positive on Canna growth (Li, S. et al, 2009). The yield of The Chainat 1 (Oryza sativa L. cv.…”

Section: Yieldmentioning

confidence: 96%

“…Landfilling of sludge has been an inexpensive method of disposal but requires more land to fill. Incineration reduces the sludge to ash, which can then be used for landfill, but in most cases, more fuel is needed to burn the sludge into ash, which makes this method less economical (Dolgen et al, 2007 andLi et al, 2009). Sewage sludge has become a major problem in many cities in the world due to rapid population growth and urbanization.…”

Section: Introductionmentioning

confidence: 99%

Thickness of Moist Sludge Piling from Community Wastewater Treatment through the Royal LERD Technology for Growing Rice

Supakata¹,

Chunkao²

2011

JAS

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Using moist sewage sludge as a new source for growing rice is an alternative community wastewater treatment with agricultural benefit and ease management (saves time and space). The experimental study was conducted to investigate the potential of using the moist sludge from community wastewater treatment in growing rice (Oryza sativa L.:Chinat1 rice cultivar). In this experiment, the sludge was divided into 21 treatments, which could be categorized by the level of piling depth and the sun drying time. The sludge was piled at the depth of 10 cm (H10), 20 cm (H20) and 30 cm (H30). For sun drying of moist sludge, the sun exposure time was varied from 0-18 days, 0 day (D0), 3 days (D3), 6 days (D6), 9 days (D9), 12 days (D12), 15 days (D15) and 18 days (D18). The results showed that moist sewage sludge piled at the depth of 30 cm can be used to grow rice (Oryaza sativa L) under the present set of experimental conditions with sufficient nitrogen.

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“…8, No. 5; Theoretical speaking, there are hidden two natural processes; firstly, aquatic plant photosynthesis during daytime to provide oxygen as the processing (Sooknah and Wilkie, 2004;Hadad et al, 2006;Tanji et al, 2006), and secondly, thermo-osmosis process produces oxygen to bacteria for organic digestion during photosynthesis process of very young leaves, containing aerenchyma cells, of aquatic plants (Deubigh and Raumann, 1952;Bearnan, 1957;Srivastav and Avasthi, 1975;Grosse, 1989;Buchel and Grosse, 1990;Grofse and Bauch, 1991) The size of the constructed wetland has been used for wastewater treatment from various point sources for long period of time in which it depends on the amount of polluted wastewater, space availability, and topographical characteristics but normally varying on depth 0.3 to 1.0 m, surface area 100 to 600 m 2 ; mostly rectangular-shaped surface area and 1:1.000 slope (Tripathi and Shukla, 1991;Jenssen et al, 1993;Juwarkar et al, 1995;Ahn and Mitsch, 2002;Stottmeister et al, 2003;Maine et al, 2006;Yang et al, 2008;Li et al, 2009;Stefanakis and Tsihrintzis, 2012). The Photosynthetic rate of wetland plants were highly correlated with light intensity and temperature due to influence of oxygen evolving activities and disposal efficiency.…”

Section: ) Small Vertical Flow Constructed Wetlandsmentioning

confidence: 99%

H.M. The King's Royally Initiated LERD Project on Community Wastewater Treatment through Small Wetlands and Oxidation Pond in Phetchaburi, Thailand

Chunkao¹,

Tarnchalanukit²,

Prabuddham³

et al. 2014

MAS

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The research on community wastewater treatment through small aquatic-planting and grass-filtration constructed wetland in cooperating with oxidation ponds is aimed to establish demonstration models for eliminating organic contaminants under nature-by-nature process, simple technology and less expenses. There have been 7 small wetlands on 100-m x 5-m x 0.75-m small vertical flow construction wetlands (VFCW), 7 small wetlands on 25-m x 5-m x 0.75-m small VFCW in cooperating with zero discharge, 2 experimental plots of planted mangrove forest and 5-consecutive oxidation ponds plus 3 herbivore fishes per square meter.For research operation, some municipal wastewater were pumped about 0.025-cms flow rate from Phetchaburi collected pond through 18.5-km HPDE pipe with separating receivers: firstly, to small grass and aquatic planted wetlands; secondly, to small constructed wetlands; thirdly, to the planted mangrove forest; and finally to the 5-consecutive ponds in descending order of 20 cm by beginning the depth of 2.6 m at the first pond (sedimentation pond) till 1.8 m at the last pond, In basic principles, an influent has to flow continuously at height of one-third depth below surface of oxidation pond on hydraulic retention time (HRT), then flowing over weir crest about 5 cm. The effluent of each oxidation pond was monthly sampled for analyzing the water quality in order to estimate the efficiency of wastewater treatment. In the same procedures, the effluent from small wetlands as grown by aquatic plants as well as zero discharge had to collect for water quality analysis. The results found the wastewater treatment efficiency above 60 percentages for COD, BOD, and TSS. The usable life of plants for maximum wastewater treatment efficiency were specified at 90 days and 45 days for aquatic plants (Typha angustifolia Linn. and Cyperus corymbosus Rottb.), respectively. It was noticed that small wetland and oxidation pond were suitable for community wastewater treatment and gained benefits from the wastewater treatment system.

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Use of dewatered municipal sludge on Canna growth in pot experiments with a barren clay soil

Cited by 29 publications

References 47 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)

Thickness of Moist Sludge Piling from Community Wastewater Treatment through the Royal LERD Technology for Growing Rice

H.M. The King's Royally Initiated LERD Project on Community Wastewater Treatment through Small Wetlands and Oxidation Pond in Phetchaburi, Thailand

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