Improvement of soil structure and plant growth by addition of alum sludge

Rengasamy, Pichu; Oades, JM; Hancock, T. W.

doi:10.1080/00103628009367061

Cited by 62 publications

(43 citation statements)

References 3 publications

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“…The structural change in the soil microbial community structure did not however adversely affect the soils microbial diversity and even the observed waterworks sludge induced pH increases were not considered to be detrimental to soil health, but were beneficial since they were within typical pH ranges. These results are in good agreement with those of Rengasamy et al (1980) where at an alum sludge application rate up to 2 tonnes/ha, an increase in water retention in the three soil types studies was observed.…”

Section: For Structural Soil Improvementsupporting

confidence: 81%

“…Therefore, for such approach to be justified as in the case of waterworks sludge, it is very important to examine the long and short-term effects of such applications on soil quality, particularly from the physico-chemical and biological point of view (Cameron et al, 1997;Titshall and Hughes, 2005). Contrasting however, is the fact that while some studies have reported considerable improvements in typical soil qualities like water retention and pH, and by extension good crop growth (Rengasamy et al, 1980;Robert and Edward, 1987;Moodley and Hughes, 2005;Pecku et al, 2005), others have noted some undesirable impacts (Young et al, 1988;Heil and Barbarick, 1989;Owen, 2002). In most cases, plant available phosphorus and crop yield were significantly reduced at higher application rates.…”

Section: For Structural Soil Improvementmentioning

confidence: 97%

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Constructive Approaches Toward Water Treatment Works Sludge Management: An International Review of Beneficial Reuses

Babatunde

Zhao

2007

Critical Reviews in Environmental Science and Technology

374

250

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Section: For Structural Soil Improvementsupporting

confidence: 81%

Section: For Structural Soil Improvementmentioning

confidence: 97%

Constructive Approaches Toward Water Treatment Works Sludge Management: An International Review of Beneficial Reuses

Babatunde

Zhao

2007

Critical Reviews in Environmental Science and Technology

374

250

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“…Similarly, Mahdy et al (2007) showed that Al-WTR rates of up to 67 Mg ha −1 increased corn (Zea mays L.) yield and P concentrations; greater Al-WTR rates caused a decrease and an increase in corn P content when applied to clay and sandy soils (as in our system), respectively. However, more typical are observations of decreased plant yields and P concentrations (e.g., Rengasamy et al 1980;Heil and Barbarick 1989;Ippolito et al 1999;Codling et al 2002;Oladeji et al 2007). …”

Section: Infiltration Ratesmentioning

confidence: 99%

Aluminum-Based Water Treatment Residual Use in a Constructed Wetland for Capturing Urban Runoff Phosphorus: Column Study

Ippolito

2015

Water Air Soil Pollut

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Aluminum-based water treatment residuals (Al-WTRs) have a strong affinity to sorb P. In a proofof-concept greenhouse column study, Al-WTR was surface-applied at rates equivalent to 0, 62, 124, and 248 Mg ha −1 to 15 cm of soil on top of 46 cm of sand;Al-WTR rates were estimated to capture 0, 10, 20, and 40 years of P from an urban watershed entering an engineered wetland in Boise, ID, USA. Creeping red fescue (Festuca rubra) was established in all columns; one set of columns received no Al-WTR or plants. After plant establishment, once per week over a 12-week period, ∼1.0 pore volumes of ∼0.20 mg P L −1 were added to each column. Infiltration rates were measured, leachate was collected and analyzed for soluble P, and fescue yield, P concentration, and uptake were determined. After plant harvest, the sand, soil, and the Al-WTR layer were collected and analyzed for Olsen P; amorphous Al, Fe, and P; P storage capacity (PSC); and soluble + Al + Fe-bound, occluded, and Ca-bound P phases. Infiltration rate increased only due to the presence of plants. Leached P decreased (50 %) with plants present; Al-WTR further reduced soluble P leaching losses (60 %). Fescue yield, P concentration, and uptake increased with increasing Al-WTR rate, due to Al-WTR sorbing and potentially making P more plant available; Olsen-extractable P increased with increasing Al-WTR rate, supporting this contention. The PSC was reduced with the 62 Mg ha −1 Al-WTR rate but maintained with greater Al-WTR rates. The 124 and 248 Mg ha −1 Al-WTR rates also contained greater P associated with the soluble + Al + Fe and occluded phases which should be stable over the long term (e.g., decadal). It was recommended to apply Al-WTR near the 124 and 248 Mg ha −1 rates in the future to capture urban runoff soluble P in the Boise, ID, engineered wetland.

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“…By the end of 2011 the area of agricultural soils in China contaminated with heavy metals reached one fifth of the total cultivated land area and resulted in a total reduction in grain output of over one billion tonnes (Xi et al 2011). Sewage sludge application to agricultural land is a worldwide practice combining sludge disposal and benefits to soils and plants including soil physical properties (Moodley and Hughes 2005), increasing soil organic matter content (Rengasamy et al 1980;USEPA 1983), and supplying major and trace plant nutrients (Heil and Barbarick 1989;Basta et al Address correspondence to Longhua Wu, Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, P.O. Box 821, 71 East Beijing Road, Nanjing 210008, Jiangsu Province, China.…”

Section: Introductionmentioning

confidence: 99%

Efficiency of Repeated Phytoextraction of Cadmium and Zinc from an Agricultural Soil Contaminated with Sewage Sludge

Luo

Liu

et al. 2015

International Journal of Phytoremediation

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Long-term application of sewage sludge resulted in soil cadmium (Cd) and zinc (Zn) contamination in a pot experiment conducted to phytoextract Cd/Zn repeatedly using Sedum plumbizincicola and Apium graceolens in monoculture or intercropping mode eight times. Shoot yields and soil physicochemical properties changed markedly with increasing number of remediation crops when the two plant species were intercropped compared with the unplanted control soil and the two monoculture treatments. Changes in soil microbial indices such as average well colour development, soil enzyme activity and soil microbial counts were also significantly affected by the growth of the remediation plants, especially intercropping with S. plumbizincicola and A. graveolens. The higher yields and amounts of Cd taken up indicated that intercropping of the hyperaccumulator and the vegetable species may be suitable for simultaneous agricultural production and soil remediation, with larger crop yields and higher phytoremediation efficiencies than under monoculture conditions.

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Improvement of soil structure and plant growth by addition of alum sludge

Cited by 62 publications

References 3 publications

Constructive Approaches Toward Water Treatment Works Sludge Management: An International Review of Beneficial Reuses

Constructive Approaches Toward Water Treatment Works Sludge Management: An International Review of Beneficial Reuses

Aluminum-Based Water Treatment Residual Use in a Constructed Wetland for Capturing Urban Runoff Phosphorus: Column Study

Efficiency of Repeated Phytoextraction of Cadmium and Zinc from an Agricultural Soil Contaminated with Sewage Sludge

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