Biomass And Microbial Activity In A Biofilter During

Biomass and microbial activity in a biofilter during ...

Assuming the biomass and microbial activity along the biofilter depth at different air velocity are m 7 (x), m 9 (x), m 11 (x), m 13 (x) and n 7 (x), n 9 (x), n 11 (x), n 13 (x) respectively, according to Eq., the average oxygen demand of the whole biofilter can be decided not only during running operation but also after backwashing.

Biomass And Microbial Activity In A Biofilter During

Biomass And Microbial Activity In A Biofilter During. Comparison of physical technologies for biomass control in biofilters treating gaseous toluene meng-fei han, can wang, and hang liu.Removed dry biomass, biofilter performance, and microbial metabolic characteristics were analyzed to evaluate the effectiveness of the methods.Results.

Biomass and microbial activity in a biofilter during ...

Biomass and microbial activity in backwashing processes of a biofilter for tertiary treatment were investigated. The microbial groups revealed new distribution along the biofilter depth after low ...

Microbial activity in biofilter used as a pretreatment for ...

Biofilter with granular activated carbon (GAC) media was compared at three different velocities of 5.0 m/h, 7.5 m/h and 10.0 m/h. In order to better understand the organic removal capacity of the biofilters, microbial activity in the biofilters were measured during the operation.

Biomass and microbial activity in backwashed biofilter

Download Citation | Biomass and microbial activity in backwashed biofilter | Biomass and microbial activity were investigated in backwashing processes of a biofilter for tertiary treatment. The ...

Comparative measurements of microbial activity in drinking ...

1-11-2001· In this study, microbial activity showed a better correlation with DOC removal than biomass (Pearson correlation coefficients were 0.5 and 0, respectively, P<0.5). Surprisingly, no correlation was observed for the biofilter treating non-ozonated water for activity and biomass.

Biomass and microbial activity in a biofilter during ...

首页 > 期刊首页 >浙江大学学报B(英文版) >2005年5期 > Biomass and microbial activity in a biofilter during backwashing. Biomass and microbial activity in a biofilter during backwashing 下 载 在线阅读 收 藏 导出. 分享. 摘要: Biomass and microbial ...

Comparative measurements of microbial activity in …

1-11-2001· In this study, microbial activity showed a better correlation with DOC removal than biomass (Pearson correlation coefficients were 0.5 and 0, respectively, P<0.5). Surprisingly, no correlation was observed for the biofilter treating non-ozonated water for activity and biomass.

Biomass and microbial activity in a biofilter during ...

Biofilter Backwashing Biomass Microbial activity Oxygen demand. 1: 张杰坤;张忠胤先生生平事略[J];水文地质工程地质;1983年03期 2: 张杰英,杨梅玉,姜达雍;考虑大尺度凝结加热的数值模拟试验[J];应用气象学报;1987年02期 3: 张杰英;地形对大气环流影响的数值试验[J];应用气象学报;1988年02期 4: 肖文;良谋出自 …

Biomass and microbial activity in a biofilter during ...

Baietal./JZhejiangUnivSCI0056B5:47-4347Biomassandmicrobialactivityinabiofilterduringbackwashing*BAIYu白宇†1ZHANGJie张杰LIYi-fan李一凡GAOYu-nan郜玉楠LIYong ...

Responses of soil microbial biomass and enzyme activity …

6-5-2020· However, in a field study during two years, Zhang et al 16. have found that the application of imazethapyr (0.1, 1 or 10 mg kg −1 soil) changed the content of microbial biomass C.

A method for enhanced control of biomass activity and ...

OSTI.GOV Conference: A method for enhanced control of biomass activity and distribution in biofilters

Linking the Effect of Antibiotics on Partial-Nitritation ...

The operational parameters of the partial-nitritation biofilter (effluent ammonium, nitrite and nitrate concentrations; total nitrogen removal; biomass concentration; removal efficiencies of antibiotics AZT, NOR, TMP, and SMZ) were linked to the bacterial community structure of the partial-nitritation biofilter and the activity of its microbial communities through two multivariate redundancy ...

Frontiers | Linking the Effect of Antibiotics on Partial ...

The activity of ammonium oxidation measured as amoA and hao gene expression dropped a 98.25% and 99.21%, respectively, comparing the system before and after the addition of antibiotics. On the other hand, denitrifying activity increased as observed by higher expression of nir and nos genes (83.14% and 252.54%, respectively).

Comparison of physical technologies for biomass control in ...

biomass in biofilters treating toluene. The filter pressure drop, removed dry biomass, biofilter performance, and microbial metabolic characteristics were all analyzed to evaluate the effective-ness of the methods. The results of this study provide useful information regarding biomass control of industrial biofilters. PAPER HISTORY

Response of microbial community structure and metabolic ...

The effects of inlet VOCs (Volatile Organic Compounds) shifts on microbial community structure in a biofiltration system were investigated. A lab-scale biofilter was set up to treat eight VOCs sequentially. Short declines in removal efficiency appeared after VOCs shifts and then later recovered. The number of OTUs in the biofilter declined from 690 to 312 over time.

Biomass and microbial activity in a biofilter during ...

Baietal./JZhejiangUnivSCI0056B5:47-4347Biomassandmicrobialactivityinabiofilterduringbackwashing*BAIYu白宇†1ZHANGJie张杰LIYi-fan李一凡GAOYu-nan郜玉楠LIYong ...

MICROBIAL BIOMASS AND ACTIVITY IN LITTER DURING THE ...

76 R. Bras. Ci. Solo, 37:76-85 Daniel Bini et al. MICROBIAL BIOMASS AND ACTIVITY IN LITTER DURING THE INITIAL DEVELOPMENT OF PURE AND MIXED PLANTATIONS OF Eucalyptus grandis AND Acacia mangium(1) Daniel Bini (2), Aline Fernandes Figueiredo (3), Mylenne Cacciolari Pinheiro da Silva (4), Rafael Leandro de Figueiredo Vasconcellos (5) & Elke Jurandy Bran Nogueira Cardoso (6)

A method for enhanced control of biomass activity and ...

OSTI.GOV Conference: A method for enhanced control of biomass activity and distribution in biofilters

Effect of vapor-phase bioreactor operation on biomass ...

Excess biomass accumulation and activity loss in vapor-phase bioreactors (VPBs) can lead to unreliable long-term operation. In this study, temporal and spatial variations in biomass accumulation, distribution and activity in VPBs treating toluene-contaminated air were monitored over a 96-day period.

Microbial Structure and Functions of Biofilm During ...

The microbial structure of biofilm and suspended biomass was investigated by the quantity of anaerobic heterotrophs, anaerobic spore-forming microorganisms and denitrifying bacteria. The total dehydrogenase activity and the nitrate reductase activity were used as indicators for biomass activity.

Microbial biomass and activity in litter during the ...

SECTION 2 - SOIL PROCESSES AND PROPERTIES COMMISSION 2.1 - SOIL BIOLOGY . Microbial biomass and activity in litter during the initial development of pure and mixed plantations of Eucalyptus grandis and Acacia mangium (1). Biomassa e atividade microbiana da serapilheira durante o desenvolvimento inicial de plantios puros e mistos de Eucalyptus grandis e Acacia mangium

Sustainability | Free Full-Text | Biomass Growth and Its ...

Therefore, the accumulation of biomass is considered to be the main factor contributing to the increase of airflow resistance through the bed of biofilter during its long-term operation [13,14]. The rate of biomass accumulation depends on the conditions prevailing inside the apparatus, particularly on the bedload, temperature, and flow rate of the rinsing fluid [ 15 ].

Biofilter performance and characterization of a ...

A biofilter treating alkylbenzene vapors was characterized for its optimal running conditions and kinetic parame-ters. Kinetics of the continuous biofilter were compared to batch kinetic data obtained with biofilm samples as well as with defined microbial consortia and with pure culture isolates from the biofilter. Both bacteria and fungi were present in the bioreactor.

An improved biofilter to control the dissolved organic ...

activated carbon, biofilters, byproducts, disinfection, dissolved organic nitrogen, drinking water, microbial biomass, microbial growth, pH, quartz, sand, water treatment Abstract: Dissolved organic nitrogen (DON) is a key precursor of numerous disinfection by-products (DBPs), especially nitrogenous DBPs (N-DBPs) formed during disinfection in drinking water treatment.

Quantification of microbial degradation activities in ...

Effect of AC types on microbial activities. During the summer period from May to August 2016 (110 days), the DOC concentrations in the influent waters of the three BAC filters ranged from 0.89 to 1.03 mg/L (Fig. 1).DOC concentrations were higher during the winter period from December 2016 to January 2017 (42 days) ranging from 1.03 to 1.20 mg/L.