Navigation Links
Wastewater treatment lowers pathogen levels
Date:1/3/2011

Madison, WI DECEMBER 30, 2010 A recent study by a team of researchers at the University of Arizona has tracked the incident of pathogens in biosolids over a 19 year period in one major U.S. city. In the same study, the researchers also analyzed pathogen levels in biosolids at 18 wastewater treatment plants in the United States.

Their analysis indicates pathogens levels have dropped since the implementation of federal regulations on treating sewage in 1993. These treatment guidelines have proven to be extremely effective with 94% to 99% of all pathogens in biosolids eliminated after wastewater treatment.

"This is the first major study of its kind since federal regulations for wastewater treatment were implemented in 1993," says Dr. Ian Pepper, one of the authors of the study and the director of the University of Arizona's Environmental Research Laboratory.

The term biosolid refers to sewage sludge that has under gone a certain level of treatment and is divided into two classifications. Class A biosolids undergo a high level treatment and do not show any signs of pathogens. In contrast, Class B biosolids receive a lower amount of treatment and have been found to contain bacterial, parasitic, and viral pathogens.

Around 5.5 billion kilograms of biosolids are produced annually in the United States, with the vast majority being Class B. Approximately 60% of the annual production of biosolds is used as agricultural fertilizer.

Pepper adds, "By analyzing the data before and after 1993, the Arizona group was able to determine the influence of the regulations on the incidence of pathogens in Class B biosolids. The study showed that fecal coliforms and virus concentrations are now generally lower than before the 1993 regulations."

Class B biosolids from the Pima County Ina Road Wastewater Treatment Plant in Tucson were analyzed from 1988 to 2006. Additional samples were collected between 2005 and 2008 from wastewa
'/>"/>

Contact: Sara Uttech
suttech@sciencesocieties.org
608-268-4948
American Society of Agronomy
Source:Eurekalert

Page: 1 2

Related biology news :

1. UC research: Rabbits food brings luck in decreasing estrogen levels in wastewater
2. Stanford engineers use rocket science to make wastewater treatment sustainable
3. Household detergents, shampoos may form harmful substance in wastewater
4. ACS webinar features developments in online water and wastewater monitoring
5. Wastewater produces electricity and desalinates water
6. New method monitors critical bacteria in wastewater treatment
7. Commercial aquatic plants offer cost-effective method for treating wastewater
8. A protein called cFLIP makes tumor cells in breast cancer resistant to treatments
9. Pitt study finds green water treatments may not kill bacteria in large building cooling systems
10. Delivering drugs to the brain: New research into targeted treatment of Alzheimers
11. Novel compounds show early promise in treatment of Parkinsons, Huntingtons, Alzheimers
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/17/2014)... 2014 The Defense Logistics Agency is insourcing its ... counterfeit microcircuits from entering into its supply chain. ... anti-counterfeit initiative dubbed DNA marking. The capability will validate ... throughout the supply chain. The new quality control measures ...
(Date:12/15/2014)... Markets ( http://www.researchandmarkets.com/research/87pph8/global_facial ) has announced the ... report to their offering. ... technology used for the identification of individuals. Facial recognition ... such as nose, jaw edges, mouth, and the distance ...
(Date:12/10/2014)... You,ve been here before: you desperately need to sign into your ... the answer to your secret question. What,s your dog,s birthday? Who ... Labs , a digital infrastructure security company, launches the ... comes with usernames, passwords and PINs – 1U TM ...
Breaking Biology News(10 mins):Defense Logistics Agency Launches DNA Marking Capability to Strengthen Microcircuit Supply Chain 2Defense Logistics Agency Launches DNA Marking Capability to Strengthen Microcircuit Supply Chain 3Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 2Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 3The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 2The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 3
... discovered that the loss of a protein in the early ... conclusion that the Doctor in Biochemistry reached in the dissertation ... In order to perform the study she began with prior ... appears in the tissue cells that coat the normal lung, ...
... exotic that has visited ecological havoc on numerous Wisconsin lakes ... introduction to Wisconsin waters sometime in the 1950s, the crayfish ... the underwater forests that are critical fish habitat, evicting the ... scooping up fish eggs like so much caviar. , But ...
... age 35 cover their mouth to avoid smiling in public ... Typically, invasive as well as costly treatment options, such as ... to help these individuals hide such stains and boost their ... member and clinician, will explain how a new tooth whitening ...
Cached Biology News:Study shows hope for ridding lakes of clawed invader 2Study shows hope for ridding lakes of clawed invader 3Tetracycline plus teeth equal gray smile 2Tetracycline plus teeth equal gray smile 3
(Date:1/23/2015)... Biofertilizers stimulate microbial activities in soil. These microorganisms ... the activities in the soil or in the rhizosphere. ... stress on reducing environmental pollution and on reducing the ... segments the bio fertilizers market with analysis and forecasting ...
(Date:1/22/2015)... (PRWEB) January 22, 2015 Shimadzu ... new UV-1280 multipurpose UV-visible spectrophotometer. Offering wavelength scanning ... instrument is ideal for applications in a variety ... science. , The user-friendly UV-1280 enables intuitive operation, ...
(Date:1/22/2015)... Mass (PRWEB) January 21, 2015 Cambridge Semantics, ... Web technology, today announced that 2014 was a record-breaking year ... the capabilities of the Anzo Smart Data Platform and our ... and utilize insights from diverse data which led to record ...
(Date:1/22/2015)... Diego, California (PRWEB) January 22, 2015 ... Promotional Offer to their comprehensive portfolio of Eppendorf ... allows customers to purchase a Centrifuge 5424/5424 R and ... Bundle of either Eppendorf Research plus or Eppendorf Reference ...
Breaking Biology Technology:Biofertilizers Market Expected to Reach $1,649.7 Million by 2019 - New Report By MarketsandMarkets 2Biofertilizers Market Expected to Reach $1,649.7 Million by 2019 - New Report By MarketsandMarkets 3Biofertilizers Market Expected to Reach $1,649.7 Million by 2019 - New Report By MarketsandMarkets 4Shimadzu’s New Monitored Single-Beam UV-Vis Spectrophotometer Offers Comprehensive Measurement Options in a Compact Body 2Cambridge Semantics Announces Record Results for 2014 2Eppendorf Announces Promotional Bundle Which Includes: Eppendorf Centrifuge 5424, 3-Pack of Pipettes, and Tips - Available Now at Pipette.com 2
... ... ... innovative provider of data automation solutions for healthcare providers, today announced the appointment of John ... iSirona,s founder, who will continue to serve as the company,s CEO and retains a seat ...
... BEIJING, Nov. 9 /PRNewswire-Asia-FirstCall/ -- Yongye International, Inc.,(Nasdaq: ... manufacturer, developer,and distributor of Shengmingsu brand plant and animal ... announced that it will conduct a,conference call at 10:00 ... 16, 2009 to discuss results for the quarter ended ...
... CEL-SCI Corporation (NYSE Amex: CVM) announced ... and Microbiology of Northeastern Ohio Universities College of Medicine ... scientists at the Cleveland Clinic and CEL-SCI on CEL-SCI,s ... the 7th GTCbio Vaccine: "All Things Considered" Conference in ...
Cached Biology Technology:iSirona Selects New Chairman of the Board 2Yongye International Announces Conference Call to Discuss Third Quarter 2009 Results 2Yongye International Announces Conference Call to Discuss Third Quarter 2009 Results 3CEL-SCI Collaborators Present Data Suggesting That LEAPS Technology Has Ability to Modify Immune Response 2CEL-SCI Collaborators Present Data Suggesting That LEAPS Technology Has Ability to Modify Immune Response 3
Reported to support murine B lymphocytes, hematopoietic tissue from bone marrow, B cells stimulated with lipopolysaccharide, T lymphocytes, and a variety of hybrid cells....
... F-12 was developed for culturing hybrid cells ... modification consists of doubling the amino acids ... salt concentrations have been altered as well. ... per liter, which may render it unsuitable ...
... Alsevers solution is an isotonic, balanced salt ... preservative, which permits the storage of whole blood ... usage, an equal volume of blood is collected ... but thoroughly, mixed. The solution is placed in ...
... or individual RNA sequences from high throughput synthesis ... RNAs from LC Sciences. These products provide a ... of DESIGNED sequences delivered in a microtube as ... a single verified RNA sequence. This is a ...
Biology Products: