Both the oil field sludge
and the oil tank sludge
comprise abundant of toxic substances from the most carcinogenic polycyclic aromatic to heavy metal, and even to radioactive material.
Veteran Black Country showbiz agent Reg Summerfield remembers Sludge as a warm-hearted man.
"Many years ago," says Reg, "I went with Sludge to Derby for a booking.
For the dredged sludge
with high organic matter content, the major objective of this study was mainly to use cement and alkali-activated cementitious material (fly ash, slag, and phosphogypsum) to solidify dredged sludge
as a roadbed material.
There has been a limited study in triticale production with sewage sludge
application by testing whether sewage sludge
can be substituted for inorganic mineral fertilizers or not.
The waste paper sludge
(WPS) samples were collected from a Pulp and Paper Industries located in Kotri, near Hyderabad, Sindh, Pakistan.
During exploration several tons of oily sludge
has been produced which is dumped in an open pit and causes severe environmental threat to the terrestrial and aquatic life.
As can be seen in Table 4, the average lead in terms of milligrams per kilogram of dry weight in dewatered sludge
samples was equal to 19/5 [+ or -] 5/14 That compared with the standards, the average lead is below the permissible limit of Environmental Protection Agency standards of Iran (300), EPA (840), Canada (farming purposes = 70 = 140 residential purposes and park land, commercial, industrial = 260), Great Britain (300), Taiwan (50), New Jersey (target = 400 residential, non-residential purposes = 600), the Netherlands (50), Australia (100) Belgium (500), Ireland (50) and Georgia (400).
For ozonation performance evaluations, total chemical oxygen demand (TCOD), sludge
volume index (SVI), total solid (TS), SCOD, TSS and VSS were measured for each ozonation experiment.
The team visited Hanford's Maintenance and Storage Facility, where workers constructed a full-scale replica of the reactor basin that contains the sludge
. Workers at the facility design, develop, test and train for sludge
retrieval, mastering the retrieval tools, processes and techniques for sludge
retrieval in a safe, radiologically clean environment.
TOM: We work on Volvos that develop sludge
As well it is known rheological measurements may be used as an operational guide or control technique  and also to determine the relevancy of rheological parameters as indicators of sludge
quality ; in particular, hysteresis cycles area was carried out online in aeration tanks of activated sludge
as a way of detecting the appearance of filamentous bulkings and their evolution .
Volatile contents of sewage sludge
as dry ash-free basis are generally higher than 80% [2-4], with heating value similar to that of brown coal, which indicates that sewage sludge
could be incinerated with the advantage of thermal recycling and volume reduction [1, 4, 5].
Further studies should be conducted to evaluate the effects of sewage sludge
on other plant species.