scholarly journals Environmental Effects of Sewage Sludge Carbonization and Other Treatment Alternatives

Energies ◽  
2013 ◽  
Vol 6 (2) ◽  
pp. 871-883 ◽  
Author(s):  
Ning-Yi Wang ◽  
Chun-Hao Shih ◽  
Pei-Te Chiueh ◽  
Yu-Fong Huang
Keyword(s):  
Sewage Sludge ◽  
Environmental Effects ◽  
Treatment Alternatives

Environmental Effects of Land Application of Anaerobically Digested Municipal Sewage Sludge

1976 ◽  
Vol 19 (2) ◽  
pp. 0266-0270 ◽  
Author(s):  
Thomas J. Trout ◽  
James L. Smith ◽  
David B. McWhorter
Keyword(s):  
Sewage Sludge ◽  
Environmental Effects ◽  
Land Application ◽  
Municipal Sewage ◽  
Municipal Sewage Sludge

The effects of sewage sludge on growth and foliar and soil chemistry in pole-stage Corsican pine at Ringwood Forest, Dorset, UK

1991 ◽  
Vol 21 (6) ◽  
pp. 902-909 ◽  
Author(s):  
A. J. Moffat ◽  
R. W. Matthews ◽  
J. E. Hall
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Environmental Effects ◽  
Soil Chemistry ◽  
Litter Layer ◽  
Cadmium And Lead ◽  
Nitrogen Phosphorus ◽  
Sludge Application

An experiment to examine the use of sewage sludge as a fertiliser for pole-stage Corsican pine (Pinusnigra var. maritima (Ait.) Melville) is described. Dominant and codominant trees responded markedly to additions of sludge at rates of 200 and 400 m3•ha−1, increasing sawlog volume by over 50% in treated plots. Foliar analyses suggest that the trees have responded to phosphorus in the sludge. The greatest impact of sludge on the soil occurred in the litter layer; concentrations of nitrogen, phosphorus, calcium, zinc, copper, cadmium, and lead were all greater compared with concentrations of untreated controls. Nevertheless, at rates of sludge application appropriate to fertilising (200 m3•ha−1), additions of heavy metals are considered small and are unlikely to cause adverse environmental effects.

Disposal of Sewage Sludge to Sea – Research Needs

1982 ◽  
Vol 14 (3) ◽  
pp. 71-77 ◽  
Author(s):  
A R Agg
Keyword(s):  
Sewage Sludge ◽  
Environmental Effects ◽  
Algal Blooms ◽  
Research Needs ◽  
Physical Processes ◽  
Other Substances ◽  
Alternative Means ◽  
The Uk ◽  
The Cost

The need for further research on the environmental effects of sewage sludge disposed of at sea is examined with particular reference to conditions in the UK. Additional expenditure on monitoring and research appears to be justitied Dy comparison with the cost to dischargers of adopting alternative means of disposal. Research should be directed to improving methods of predicting the effects of increased discharges at selected sites and to understanding the behaviour of specific components of sludge which are not degraded in the sea. It is concluded that improved information should be obtained about (a) relative inputs of pollutants from land-based sources in some areas, (b) the physical processes controlling dispersion, sedimentation, and degradation of sludge particulates, (c) the mobilisation of conservative substances from sludge, and (d) the role of nutrients and other substances in sludge in the development of certain algal blooms.

Imaging molecules adsorbed onto electrodes under potential control by scanning probe microscopy

1991 ◽  
Vol 49 ◽  
pp. 376-377 ◽  
Author(s):  
N.J. Tao ◽  
J.A. DeRose ◽  
P.I. Oden ◽  
S.M. Lindsay
Keyword(s):  
Surface Charge ◽  
Environmental Effects ◽  
Scanning Probe Microscopy ◽  
Statistical Significance ◽  
Electrochemical Methods ◽  
Surface Structures ◽  
Scanning Probe ◽  
Potential Control ◽  
Afm Imaging ◽  
Special Circumstances

Clemmer and Beebe have pointed out that surface structures on graphite substrates can be misinterpreted as biopolymer images in STM experiments. We have been using electrochemical methods to react DNA fragments onto gold electrodes for STM and AFM imaging. The adsorbates produced in this way are only homogeneous in special circumstances. Searching an inhomogeneous substrate for ‘desired’ images limits the value of the data. Here, we report on a reversible method for imaging adsorbates. The molecules can be lifted onto and off the substrate during imaging. This leaves no doubt about the validity or statistical significance of the images. Furthermore, environmental effects (such as changes in electrolyte or surface charge) can be investigated easily.

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