Historical Examples. 1  The flashes of lightning were incessant, and nearly blinded me. 2  The footsteps were incessant, and the hurry of them became more and more rapid. 3  I have not had a moment to spare from incessant toil since the 8th. 4  I don't mean that he tells stories; but it's just his incessant grumbling.
Primary and secondary treatments remove about 85% to 95% of pollutants from the wastewater before the treated wastewater is disinfected and discharged into local waterways. Sludge, the byproduct of the treatment process, is digested for stabilization and is then dewatered for easier handling.
Graduated Cylinders or Pitchers:Vessels made of glass, plastic, or stainless steel can be used to sample liquid or. semi-solid sludge collected from taps. The vessel can be. attached to a pole or other device to extend its reach or to. sample from open channels. Composite Liquid Sludge Sampler:A composite liquid. sludge sampler or âcoliwasaâ can be used to collect flow-. able sludge from a lagoon, tank, or other sludge contain-. ment areas.