There is a significant amount of taxonomic uncertainty within this species complex. The family Varanidae contains nearly 80 species of monitor lizards, all of which belong to the genus Varanus. Stellio salvator was the scientific name used by Josephus Nicolaus Laurenti in 1768 for a water monitor specimen. Some common names for the species are Malayan water monitor, common water monitor, two-banded monitor, rice lizard, ring lizard, plain lizard, no-mark lizard and water monitor etc. salvadorii) because of their similar scientific names. The water monitor is occasionally confused with the crocodile monitor ( V. The specific name is the Latin word for "saviour", denoting a possible religious connotation. The generic name Varanus is derived from the Arabic waral ( ورل), which translates as "monitor". It was described by Laurenti in 1768 and is among the largest squamates in the world. It is listed as Least Concern on the IUCN Red List. It is one of the most common monitor lizards in Asia, ranging from coastal northeast India, Bangladesh, Sri Lanka, mainland Southeast Asia, and southern China to Indonesian islands where it lives close to water. If you would like a quotation on a specific lift station:Ĭomplete and print page 4 of the brochure (above or below) and send it to or FAX it to 50.The Asian water monitor ( Varanus salvator) is a large varanid lizard native to South and Southeast Asia. Memorial Park (wastewater) Pump Station, Tauranga City Council Reducing H2S and FOG at the Discharge of a Force Main by Frank Haltom, PE This will reduce plant costs in aeration electricity, a reduction in organic solids, and an overall improvement in water quality leaving the plant.Ĭomplete Wet Well Wizard Introduction VideoĬollection System Aeration and the Microbial Benefits by Jim Dartez Such a pretreatment not only will eliminate wastewater odor entering the plant but that water will contain a very large population of aerobic micro-organisms that will have effectively provided the wastewater operation with partially pre-treated water. With a in every pump lift station in the wastewater collection system, the water within that system becomes “pre-treated” for the wastewater plant that will be receiving it. When this aerated water is pumped downstream in the wastewater collection system it replaces all the water in the lines with oxygenated water, thereby eliminating odors from street drains downstream.Įven the water in sags, or swags, in the conduit lines downstream of the wet wells or lift stations become aerated and lose their ability to cause noxious odors. This continual microbial activity, combined with constant aggressive agitation, not only eliminates the ability of H2S to form, but it also emulsifies all FOG, and will not allow for FOG masses to collect and build in the wells. This constant agitation with highly forced air provides oxygen to the water, activating the growth of aerobic microbes in the wastewater, which in turn begin to digest the organic wastes in the water. The Wizard is a unique patent pending aeration tube that is placed into the center of the wet well to aggressively agitate and mix the wet well water. Reliant Water’s is a cost effective and reliable answer to this odor and FOG problem. H2S gas is also very corrosive to the piping and concrete used in construction of the wastewater collection system, often reducing its useful life by years. Billions of dollars per year are spent by communities in attempts to eliminate the odors which cause over three quarters of the community’s nuisance complaint calls each year. ![]() ![]() Water in these wells can sit for hours without movement, which results in a buildup of H2S gas that can become dangerous, but always emits an odor, both in the wet well itself and the conduit lines leading downstream. But the major problems are odors from the wet wells and a collection of FOG (fats, oils and grease) masses which solidify on top of the water in the wells. There are numerous daily problems to deal with for Operations personnel responsible for the maintenance and continued operation of any wastewater collection system. ![]() Often, lift stations, complete with large electric waste pumps, are used to keep the water moving to the city’s wastewater treatment plant. A primary part of the wastewater collection system is a number of “wet wells” that are used as wastewater collection points, or intercepts, from community neighborhoods. The wastewater collection system is the conduit for used water, both sanitary and gray (relatively clean, including storm water) water, which initiates at the individual homes and businesses in the community. Every modern town or city has a wastewater collection system of some type.
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