
Water
Get flash to fully experience Pearltrees
Frog Watch > Features > Bonking in the garden
"How do I get frogs in my backyard pond?" is without a doubt the most common enquiry of the hundreds received at the Amphibian Research Centre. It is most heartening to see that the current profile of frogs in the media has generated such interest. More important is the fact that most people are genuinely concerned and are prepared to make an effort to provide habitat and to encourage frogs into their gardens.Facts: Children
American Water Works Association - www.drinktap.org > Kids > Water on the Web
H20 University Provided by the Southern Nevada Water Authority SAWS Education Provided by the San Antonio Water System Savingwater.orgThe objective of sewage treatment is to produce a disposable effluent without causing harm to the surrounding environment, and prevent pollution . [ 1 ] Sewage treatment is the process of removing contaminants from wastewater and household sewage , both runoff ( effluents ), domestic, commercial and institutional. It includes physical, chemical, and biological processes to remove physical, chemical and biological contaminants. Its objective is to produce an environmentally safe fluid waste stream (or treated effluent ) and a solid waste (or treated sludge ) suitable for disposal or reuse (usually as farm fertilizer ).
Sewage treatment
How does wastewater treatment work? Wastewater treatment can encompass a number of steps, which filter, clarify and clean wastewater from start to finish. Currently, the CRD region employs a variety of wastewater treatments, some of which filter and some of which provide secondary treatment. Preliminary Treatment Preliminary treatment screens out coarse solids (rocks, rags, plastics, etc.) and grit (sand and gravel) which are normally sent to landfill.

