According to the Affidavit of Probable Cause, the DEP in October 1999 issued a Notice of Violation to LVR for illegally accepting sewage sludge
from unapproved generators.
Instead of dumping at sea hundreds of thousands of tons of municipal sewage sludge
containing infected human feces, hospital wastes, bacteria, viruses, dioxins, PCBs, asbestos, industrial waste, heavy metals and a whole range of other pollutants, the material is now being spread on America's landfills, farmlands and prairies.
Concentration of heavy metals in soil is especially relevant issue which is regulated by HN 60:2004 "The Maximum Permissible Concentrations of Dangerous Chemicals in Soil" and LAND 20-2005 "Requirements for Sewage Sludge
Usage for Fertilisation and Remediation".
The main heavy metals of concern in sewage sludge
are Cd, Zn, Cu, Pb, Se, Mo, Hg, Cr, As, and Ni.
In its findings, the EPA held that MaxWest's pioneering technology that breaks down sewage sludge
through heating in an oxygen-starved environment prevents combustion, and thus will not be regulated as an incinerator.
Of the various methods for sewage sludge
disposal, low-cost and highly effective on-land techniques have been widely applied (Bode, Imhoff 1996; Bowen et al.
As well as the nitrogen and phosphates it contained, sewage sludge
was also valuable for the organic matter it added to soil.
Scientific novelty: complex researches on the emission of gaseous pollutants during the process of sewage sludge
composting through the application of reduction measures of natural odours in order to determine their possibilities of usability and performance.
The antibiotic triclosan, another suspected endocrine disruptor, was also found in the sewage sludge
"compost," at an average of 1,312 ng/g (or ppb).
Following the rapid hikes in potash and phosphate fertiliser costs, renewed interest has been shown in the use of sewage sludge
, and water companies are now seeing a demand for the product.
from trucking its sewage sludge
to the other county.
He appears to have misunderstood the purpose of our study, which was to provide evidence as to whether or not the complex mixture of chemicals that are present in treated sewage sludge
are able to exert any effects on the developing fetal testis in the sheep.