Imhoff tank

Some use Imhoff tanks or the activated sludge procedure commonly used in many developed countries.

Settleable solids can be quantified for a suspension (chemistry) using an Imhoff tank or cone.

Examples are pit latrines, septic tanks, and Imhoff tanks.

A few years after deploying the filters it was necessary to add Imhoff tanks before the slow filters, as research showed contamination in the water.

Imhoff tank, which are used for treatment of waste water, and the Imhoff cone for determining settleable matter.

An Imhoff tank is a two-stage septic system where the sludge is digested in a separate tank.

Basically, water was carried from a pump station to slow filters, some chambers of which had the role of tanks processing the sewage (Imhoff tanks).

Fayetteville's first wastewater treatment came in 1913 in the form of a Imhoff tank on the West Fork of the White River.

Imhoff tanks are being superseded in sewage treatment by plain sedimentation tanks using mechanical methods for continuously collecting the sludge, which is moved to separate digestion tanks.

Imhoff Tanks: Recent trials on an Imhoff tank in South East Asia resulted in a reduction of odour early in the program.

The training aids included flow charts, syphon flush toilets, tip bucket, flush latrine, tip can flush latrine, Imhoff tank, septic tank, and several types of sewage conduits.

In an Imhoff tank, fresh sludge is passed through a slot to the lower story or digestion chamber where it is decomposed by anaerobic bacteria, resulting in liquefaction and reduced volume of the sludge.

Such a primary treatment can consist of sand and grit removal, grease trap, compost filter, septic tank, Imhoff tank, anaerobic baffled reactor or u pflow anaerobic sludge blanket (UASB) reactor.

The Imhoff tank is in effect a two-story septic tank and retains the septic tank's simplicity while eliminating many of its drawbacks, which largely result from the mixing of fresh sewage and septic sludge in the same chamber.

More commonly with domestic sewage, the fresh sludge is continuously extracted from the tank mechanically and passed to separate sludge digestion tanks that operate at higher temperatures than the lower story of the Imhoff tank and, as a result, digest much more rapidly and efficiently.