nitrification Articles

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Nitrification Insurance

by Cleveland Biotech Ltd  (Apr. 1, 2011)

A market leader in biomass engineering has launched a 24-hour biological safeguard system to protect organisations operating treatment plants against discharging illegal levels of ammonia. North East-based Cleveland Biotech (CB) has seen an increase in enquiries for its Amnite NS5000 product from companies which are obliged to prove to authorities ...

Nitrification case study

by Cleveland Biotech Ltd  (May 29, 2014)

The Bay View effluent treatment plant is one of the largest wastewater treatment facilities in North West Ohio, USA. The facility is located near the mouth of the Maumee River and provides treatment for an area of about 100 square miles. About 84 square miles of this area is located within Toledo city. The population that it serves is ...

Battling nitrification with blacklights

by American Water Works Association (AWWA)  (Apr. 21, 2010)

THE LOS ANGELES DEPARTMENT of Water and Power suspended a bank of fluorescent blacklights in the head-space of Mount Washington Tank 2 in July 2009. The idea was to test whether standard overhead light fixtures could supply enough near-ultraviolet (UVA) radiation to prevent nitrification onset in covered storage facilities containing chloraminated ...

Nitrification Potential Curves: A New Strategy for Nitrification Prevention

by American Water Works Association (AWWA)  (Aug. 1, 2005)

Chloramination has replaced free chlorine as a secondary disinfectant at many utilities because of regulations limiting trihalomethanes (THMs) and haloacetic acids (HAAs) in the distribution system. Chloramine use is advantageous because it forms substantially lower concentrations of THMs and HAAs than free chlorine. However, the potential for ...

Industrial Wastewater: Nitrification Inhibition Tests

by microLAN On-line Biomonitoring Systems  (Jan. 1, 2007)

Is the biology in your sewage plant working properly? During aerobic and anaerobic decomposition reactions nitrogen from nitrogen-containing organic substances is first converted to ammonium.   The subsequent two-step microbial oxidation of ammonia to nitrate via nitrite is called nitrification. In soil as well as in water it is ...

Nitrification: Causes, Prevention, and Control

by American Water Works Association (AWWA)  (Dec. 1, 2001)

This article discusses how nitrification in drinking water distribution systems is a concern for water systems that use chloramines as a secondary disinfectant. If left uncontrolled, nitrification can lead to serious water quality degradation, high heterotrophic plate count (HPC) in the distribution system, and undetectable disinfectant residual, ...

Controlling Nitrification in Chloraminated Systems

by American Water Works Association (AWWA)  (Jul. 1, 1996)

Of US water systems that chloraminate, an estimated two thirds experience some degree of nitrification in the distribution system. Measures utilities use to control nitrification were investigated through field sampling, evaluation of utility data, laboratory tests, and case studies of systems that have evaluated or attempted to control ...

Nitrification in a Distribution System

by American Water Works Association (AWWA)  (Jul. 1, 1993)

Symptoms indicative of nitrification occurred in the Ann Arbor, Michigan, system during the late summer of 1990. The episode was characterized by decreases in monochloramine residual and increases in heterotrophic plate count (HPC) bacteria and nitrite. The cause of the nitrification was most probably a high dosage of ammonia combined with ...

Recovery of Nitrification pharmaceutical company case study

by Bio Systems Europe  (Aug. 9, 2013)

One Sunday in May our weekend standby service received a telephone call from a pharmaceutical company who’s waste water treatment system had suffered a plant upset, thought to have occurred the previous day, resulting in the loss of nitrification. The standard to be maintained is 10 mg/l. Because of the urgency of the situation our team ...

Nitrification in Monochloramine-Treated Water Systems

by LuminUltra Technologies Ltd.  (Jan. 21, 2013)

A Water utility based int the Midwest USA uses Monochloramine treatment to treat their two surface water treatment plants to disinfect raw water and establish residual disinfectant prior to discharge to their distribution system.  Like most water utilities that use Monocholoramines, a common area of concern is nitrification. Residual ammonia ...

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