lime sludge

См. также в других словарях:

• Lime softening — Lime softening, also known as Clark s process[1], is a type of water treatment used for water softening. In the USA, it is used primarily in the Midwest, Florida and Texas. It utilizes the addition of lime (calcium hydroxide) to remove hardness… …   Wikipedia

• Sludge — is the residual semi solid material left from industrial, water treatment, or wastewater treatment processes.When fresh sewage or wastewater is added to a settling tank, approximately 50% of the suspended solid matter will settle out in about an… …   Wikipedia

• Sludge bulking — is defined as poor settling characteristics in sedimentation tanks. It is a problem that occurs in activated sludge process in wastewater treatment. The main cause of sludge bulking is the growth filamentous bacteria and algae. Filamentous… …   Wikipedia

• environmental works — ▪ civil engineering Introduction       infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations …   Universalium

• Acid mine drainage — Yellow boy in a stream receiving acid drainage from surface coal mining. Acid mine drainage (AMD), or acid rock drainage (ARD), refers to the outflow of acidic water from (usually abandoned) metal mines or coal mines. However, other areas where… …   Wikipedia

• Fly ash — Photomicrograph made with a Scanning Electron Microscope (SEM): Fly ash particles at 2,000x magnification Fly ash is one of the residues generated in combustion, and comprises the fine particles that rise with the flue gases. Ash which does not… …   Wikipedia

• agricultural technology — Introduction       application of techniques to control the growth and harvesting of animal and vegetable products. Soil preparation       Mechanical processing of soil so that it is in the proper physical condition for planting is usually… …   Universalium

• Water purification — This article is about large scale, municipal water purification. For portable/emergency water purification, see portable water purification. For industrial water purification, see deionized water. For distilled water, see distilled water. Water… …   Wikipedia

• Domtar — Corporation Type Public Industry Paper Paper Products Headquarters Montreal, Quebec, Canada …   Wikipedia

• Sewage treatment — The objective of sewage treatment is to produce a disposable effluent without causing harm to the surrounding environment, and also prevent pollution.[1] Sewage treatment, or domestic wastewater treatment, is the process of removing contaminants… …   Wikipedia

• Cordwood construction — For the method of electronic component assembly, see Printed circuit board# Cordwood construction. A section of a cordwood home. Cordwood construction (also called cordwood masonry, stackwall construction or stackwood construction ) is a term… …   Wikipedia