Abstract：
:Phosphorus and nitrogen are the important eutrophication nutrients. They were removed in the anaerobic/anoxic/oxic (A2/O) system through biologically. The use of pilot scale A2/O systems with immersed membranes in removing nutrients phosphorus and nitrogen were investigated over a period of 150 days. The A2/O membrane bio reactor (MBR) was operated at a flux of 17 LMH. The designed flux was increased stepwise over a period of one week. The reactor was operated with the mixed liquid suspended solids (MLSS) concentrations in the range of 7000-8000 mg l(-1). The phosphorus removal was found to be in the range of 74-84%. The ammonification was completed in the aerobic zone and the ammonia concentration was almost nil. Nitrate concentration in the anoxic zone was found to be in the range of 0.3-1.6 mg l(-1) indicating efficient denitrification. The nitrogen removal efficiency of the A2/O-MBR system was in the range of 68 to 75%. The chemical oxygen demand (COD) in the effluent was in the range of 8-5 mgl(-1) indicating the efficiency of membrane. During the period of reactor operation transmembrane pressure (TMP) of the reactor increased slowly from 0 to 6 -cmHg over a period of 150 days.
journal_name
J Environ Bioljournal_title
Journal of environmental biologyauthors
Banu JR,Uan DK,Chung IJ,Kaliappan S,Yeom ITsubject
Has Abstractpub_date
2009-11-01 00:00:00pages
959-63issue
6eissn
0254-8704issn
2394-0379journal_volume
30pub_type
杂志文章abstract：:Cenchrus is an important component of major grass cover of world. Similar to the other major tropical grasses most of the species in genus Cenchrus are also apomictic in nature hence correct and precise identification of accessions and species are problematic and dubious. In the present study 187 decamer oligonucleoti...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2010-07-01 00:00:00
abstract：:The carbohydrate contents of sweet sorghum (Sorghum bicolor L. Moench) is an important industrial factor for crystal sugar or bioethanol production. In this study the relationship between growth analysis and carbohydrate contents were studied to recognize the best growth stages for sweet sorghum harvesting. Five sweet...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2007-07-01 00:00:00
abstract：:Duckweed (Lemna minor) a small vascular plant, grows rapidly, is sensitive to a wide variety of toxicants and is easy to culture. A method is described that measures duckweed frond growth, chlorophyll, protein and biomass content as indicator of growth inhibition. The physico-chemical analysis of anaerobically treated...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2004-01-01 00:00:00
abstract：:In the present study, water samples from 3 stations of Kor river, Iran were analyzed for seasonal fluctuation of physico-chemical parameters, i.e. air and water temperature, dissolved oxygen, BOD, COD, total nitrogen, total hardness, pH, alkalinity, acidity, total dissolved solid and water current. Effect of physico-c...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2008-09-01 00:00:00
abstract：:Analysis of land use and land cover changes in Ukraine were evaluated with special attention given to the interaction of land and water resources. The rational fresh water management in agriculture under future climate change conditions is of great importance. The hydrological regime of a river has huge impact on the ...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2015-01-01 00:00:00
abstract：:Creating precise climatic maps (temperature and precipitation map especially) on small areas such as drainage basins or landform units is always very useful for ecology of plants, distribution of vegetation and also different types of agricultural land. The geographic information system (GIS) analysis of several key-f...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2012-04-01 00:00:00
abstract：:The present study was carried out to determine the water quality in terms of physicochemical characteristics and plankton distribution in the coastal waters of Kattumavadi, Palk Bay for a period of one year from April 2002 to March 2003. Air and surface water temperatures varied from 28 degrees C to 32.50 degrees C an...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2006-07-01 00:00:00
abstract：:The study was conducted to evaluate the accumulation pattern of cadmium (Cd) and its tolerance in different crops grown on sewage irrigated soils with differentCd levels. Growth, yield, uptake and tolerance of maize, raya, berseem and spinach were assessed to different levels of Cd ranging from 0-40 mg kg(-1) soil. Si...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2014-09-01 00:00:00
abstract：:East Calcutta Wetlands is an internationally important site for natural remediation of domestic sewage and organic waste and their successful recycling into habitat for pisciculture. Macrobenthic fauna is responsible for efficient utilization of sediments and their diversity indicates health of a wetland in accordance...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2013-07-01 00:00:00
abstract：:In this study soil properties and root biomass responses to prescribed fire were investigated in 25-30 year-old calabrian pine (Pinus brutia Ten.) stands in Edirne, Turkey. The stands were established by planting and were subjected to prescribed burning in July 2005. Soil respiration rates were determined every two mo...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2010-01-01 00:00:00
abstract：:For analyzing basic marine and coastal characteristics we selected the potential sites where shrimp culture could be developed in a large coastal zone, Bahia Magdalena, Baja California Sur, Mexico. Based on our analysis, 6 sites were preselected and field stages of work were then developed to assess the precise suitab...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2008-03-01 00:00:00
abstract：:Seeds from three provenances of Pinus brutia were stratified for 0 or 45 d (days) at 4 +/- 1 degrees C and then germinated at 15 degrees C or 20 degrees C on filter paper saturated with polyethylene glycol solutions to provide water potentials of 0, -0.2 and -0.4 MPa (mega Pascal). Regardless of stratification, germin...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2007-01-01 00:00:00
abstract：:This study reports the effects of low level developmental Pb exposure on specific brain regions like hippocampus, cerebellum and cerebral hemispheres of antioxidant enzyme activities. Wistar dams were exposed to 50 ppm, 100 ppm and 500 ppm of Pb acetate in drinking water during pregnancy and lactation (gestation day 6...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2007-01-01 00:00:00
abstract：:In an aquatic environment, there is a profound and inverse relationship between environment quality and disease status of fish. Parasites are one of the most serious limiting factors in aquaculture. Therefore, the present investigation has been undertaken to sort out the population dynamics of Pallisentis (Acanthoceph...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2012-03-01 00:00:00
abstract：:A double parasitism (isopod and copepod) on anchovy fish, Stolephorus commersonii Lacepede, 1803 was recorded from Parangipettai (India) coastal waters during June, 2004. This is the first report from this region and the infestation is discussed in relation to environmental parameters in this short communication. ...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2006-07-01 00:00:00
abstract：:The effect of temperature and light on the germination performance of Ulmus minor, Ulmus glabra and Ulmus laevis were studied in this research. Seeds were germinated under constant temperatures of 20 and 25 degrees C and alternating temperatures of 25/15 and 30/20 degrees C. Within each temperature regime, seeds were ...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2007-04-01 00:00:00
abstract：:This paper presents the growth response of 25 yr old Lebanon cedar (Cedrus libani A. Rich.) plantation to thinnings of different intensities in Isparta in western Turkey. The thinning intensity was measured by using the residual basal area (%) as parameter. In spring of 2005, three treatments were tested; light, moder...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2010-09-01 00:00:00
abstract：:An experiment was designed to examine microbiology of water samples of Gölbasi lake and to assess the occurence of multiple antibiotic resistances in Escherichia coli from them. Total aerobic bacteria number in the lake was determined as 20x10(3) cfu ml(-1) and fecal coliforms were determined >1100 MPN/100 ml. Collect...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2009-01-01 00:00:00
abstract：:The effect of chronic exposure to carbofuran (4.5 ppm in static water) for six months on the gonadal histophysiology and hypothalamo-neurohypophyseal complex was studied in Channa punctatus. Experimental observations revealed significant inhibition of gonadal development with associated degenerative abnormalities as e...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2001-07-01 00:00:00
abstract：:In the present study, a new type of interior optical fiber illuminating reactor was developed for H2 production to solve the problem of luminous intensity attenuation at the center portion of a reactor, and an immobilization technique was used to enhance the stability of a continuous hydrogen production process with a...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2016-09-01 00:00:00
abstract：:The present study has been undertaken to evaluate physico-chemical parameters (pH, temperature, dissolved oxygen, free carbon dioxide, alkalinity and hardness) and zinc concentration in water bodies in and around Jaipur. Water samples from Jalmachal Lake, Nevta Lake, Amer Lake and Ramgarh Lake were analysed. Results r...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2003-04-01 00:00:00
abstract：:The tissue cholesterol and serum cortisol changes during four reproductive phases has been studied in the freshwater fish Notopterus notopterus of male sex during four phases, preparatory (January - March), prespawning (April - May), spawning (August - September) and post spawning (November - December). The cholestero...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2005-10-01 00:00:00
abstract：:Phaeophyscia hispidula (Ach.) Moberg, foliose lichen is widespread in Garhwal Himalayas and grows luxuriantly on different substratum in polluted as well as non polluted sites, where no other macrolichens are able to colonize. The elemental concentration and biochemical parameters in P. hispidula collected from Dehra ...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2012-11-01 00:00:00
abstract：:Restoration of mine spoil is a prime need for coal industry. The study of ground cover vegetation provides essential information about the species diversity and their successional trends during the restoration. The present study was conducted to analyze the structure and biomass accumulation of ground vegetation devel...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2005-10-01 00:00:00
abstract：:Protective efficacy of MPG (2-mercaptopropionyl glycine) was studied against the toxic effects of lead acetate in Swiss albino mice. The animals were treated with single dose of lead acetate @ 180, 200 and 250 mg/kg b.wt. in presence and absence of MPG. The results indicated that the body weight was slightly higher in...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2001-10-01 00:00:00
abstract：:The Finnish wood heat treatment technology ThermoWood, was recently introduced to Turkey. Data about the mechanical and physical properties of Turkish wood species are important for industry and academia. In this study two industrially important Turkish wood species, pine (Pinus nigraArnold.) and fir (Abies bornmüller...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2010-11-01 00:00:00
abstract：:This study represents the summary of the water quality of River Ganga during mass bathing in Haridwar during Maha Kumbha of 2010 in terms of microbiological and molecular analysis. The sample was collected from River Ganga during Makar Sankranti to Shakh Poornima and assessed for fecal indicator bacteria Escherichia c...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2013-07-01 00:00:00
abstract：:Photocatalytic degradation of chemical pollutants in water was investigated using semiconductor oxide catalysts, zinc oxide (ZnO) and titanium dioxide (TiO2) and phenol as the substrate. Influence of various parameters such as characteristics of the catalyst, irradiation time, substrate and catalyst concentrations, pH...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2010-05-01 00:00:00
abstract：:The present paper deals with the rich avifauna available at Jamwa Ramgarh Lake of Rajasthan in India. More than 100 species of birds belonging to 38 families were recorded at lake during the year 2002, maximum species were sighted during the winter season. Due to scanty rainfall in 2002, this lake was also affected an...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2005-07-01 00:00:00
abstract：:Callus induced from leaf explants of Pueraria lobata seedlings were suspended in Gamborg B5 medium supplemented with 1 mg l(-1) 2,4-dichlorophenoxyacetic acid, 1 mg l(-1) naphthalene acetic acid, 0.5 mg l(-1) kinetin and 30 g l(-1) sucrose. The effects of coconut milk and casein hydrolysate (CH) on cell growth and yie...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2006-01-01 00:00:00
