(1) With the trowel, I commenced scooping diesel oil sludge into the bucket.

(2) Sewage, sludge , and mine waste are common sources of metals found in soils, but metals also occur naturally.

(3) Today, the accumulated amount of oil emulsions and sludge in the environment is estimated to be 1.2 billion tons.

(4) Picturesque coastal areas hit by the Prestige oil tanker spill were facing a fresh deluge of sludge yesterday, with fierce winds blowing slicks in from the Atlantic.

(5) A small town near Niagara Falls becomes a ghost town after industrial sludge from a leaking dump renders the area toxic.

(6) It's almost amusing, until one of them sinks into a pool of oily sludge and wings greased, struggles helplessly to get free as the others fly off.

(7) It now appeared to be the case that what was being treated was industrial waste when they were advised the plant was to treat sludge from sewage treatment plants.

(8) This sludge blocked fuel filters, carburettors and fuel-injection systems, leading to rough running and engine failures.

(9) The second ground for refusal was that without a composting facility, the company could not deal with the residual sludge from the process.

(10) The sewer system had a very low ceiling and much of the path was taken up by a stream of thick, black sludge that oozed sickeningly towards some central point.

(11) There were also at least six large oil spills, releasing an estimated 6 millions gallons of sludge , and over 300 smaller spills.

(12) Biliary sludge is a mixture of particulate matter and bile, and it may stimulate microlithiasis.

(13) The dumping of sewage sludge

(14) It's like dumping fresh oil on sludge and wondering why your engine isn't running better!

(15) If you put your waste down the disposal, it flows, along with household sewage, to a plant where it gets separated into thick sludge and treated wastewater.

(16) His already dirtied clothes were drenched in the sludge .

(17) However, this process is not selective, produces solid sludge for disposal, may have environmentally damaging effects of its own, and must be repeated to be effective.

(18) We became experts at disconnecting the fuel line at the carburetor, taking off the cap, blowing the sludge back into the pressurized tank, and reconnecting it for another five miles.

(19) As an unforeseen consequence, oil contaminated with wax and sludge was poised to foul the new propeller governor and relief valve.

(20) And I'm sure my compressor will lock up with sludge soon.