نتایج جستجو برای: settled sewage

تعداد نتایج: 18105  

Journal: :Journal of preventive medicine and hygiene 2010
V La Fauci D Sindoni O C Grillo S Calimeri D Lo Giudice R Squeri

Samples of sewage from treatment plants at the "G. Martino" University Hospital of Messina (AOU) and that of Messina City Council were analysed to detect the hepatits E virus. Samples were taken on sewage entering and exiting the treatment plants on a monthly basis over a one-year period from both the hospital plant (24 samples) and the municipal plant (22 samples). All sewage samples were pret...

Journal: :Current Biology 2008
Alissa M. Weaver

century. A sewage system created by Victorian engineers was a remarkable achievement that began the big clean-up. The now much cleaner river is once again home to many species alongside the seahorse: the young of marine species such as flounder and bass have been discovered in nursery sites up to 20 km inland. But the sewage system that has done so much to restore the river’s cleanliness still ...

1999
Ragnar Rylander

Objectives—To further assess the presence of fatigue, symptoms of diarrhoea, and inflammation of airways among people working in sewage plants and the relation to airborne bacterial endotoxin at the workplace. Methods—34 Employees in sewage treatment plants and 35 controls were selected. They underwent a questionnaire investigation, and spirometry and airway responsiveness were measured. Measur...

2017
Hao Rong Teng Wang Min Zhou Hao Wang Haobo Hou Yongjie Xue

In this work, the thermal behavior of rice husk, sewage sludge, and their blends during combustion processes was investigated by means of thermogravimetric analysis (TGA), and the slagging characteristics were studied through X-ray fluorescence (XRF) and melting temperature. The effects of the proportion of rice husk and sewage sludge blends on the combustion process, ignition and burnout chara...

2013
Anna Malara Patryk Oleszczuk

The objective of the study was to determine the leachates toxicity from sewage sludge-amended soils (sandy and loamy). Samples originated from a plot experiment realized over a period of 29 months. Two types of soil were fertilized with sewage sludges at the dose of 3 % (90 t/ha). Soil samples were taken after 0, 7, 17, and 29 months from the application of sewage sludges. Leachates were obtain...

2013

Phytoremediation is the technique based on the use of plants to remediate sites contaminated with organic and inorganic pollutants. This technology is rapidly growing as is helpful to growing industries. Colocasia esculenta is a tropical plant grown primarily for its edible corm and the root vegetables. It has many names like Taro and Eddoe. It is a wide spread emergent aquatic plant, generally...

2006
Robert A. Pastorok

Sewage pollution is an increasing problem in tropical marine environments. In this revlew we synthesize present knowledge of the effects of sewage pollution on coral-reef communities, and suggest directions for future research. A wide range of sewage impacts on coral-reef communities has been reported. Little or no impact has been observed on some reefs in well-flushed waters that receive small...

Journal: :Water research 2009
W Ahmed A Goonetilleke D Powell T Gardner

The host specificity of the five published sewage-associated Bacteroides markers (i.e., HF183, BacHum, HuBac, BacH and Human-Bac) was evaluated in Southeast Queensland, Australia by testing fecal DNA samples (n=186) from 11 animal species including human fecal samples collected via influent to a sewage treatment plant (STP). All human fecal samples (n=50) were positive for all five markers indi...

Journal: :Marine pollution bulletin 2007
Michael A Mallin Lawrence B Cahoon Byron R Toothman Douglas C Parsons Matthew R McIver Michelle L Ortwine Renee N Harrington

A sewer main serving a large municipal wastewater system ruptured, discharging approximately 3,000,000 gallons (11,355,000 L) of raw human sewage into a multi-branched tidal creek estuary along the US East Coast. The biochemical oxygen demand caused severe hypoxia in the system, causing a large fish kill. The sewage load led to high fecal coliform bacteria concentrations in the creek (maximum o...

2009
Dong Hyun Jung Young Nam Chun

A number of methods are presented to treat sewage sludge. However, the sludge treated in each treatment process has a problem of heavy metal elution. Currently, the treatment of sewage sludge through carbonization is highlighted to solve such problem. This study carried out research of optimum carbonization and activation condition and analysis of adsorption characteristics in order to treat se...

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