نتایج جستجو برای: high turbidity

تعداد نتایج: 2063698  

Journal: :journal of agricultural science and technology 2010
b. farmani j. hesari m. h. haddadekhodaparast s. aharizad

the conditions for the refinement of clarified sugarcane juice, including temperature (50o, 60o and 70oc) and pressure (0, 0.5, 1 and 1.5 bars) by micro-filtration membrane technology were investigated. the raw sugarcane juice was initially pre-filtrated with lime and then the juice obtained (clarified juice) processed using a ceramic micro-filter mem-brane (0.2 micrometer). the characteristics...

2012
G Badalians Gholikandi E Dehghanifard M Noori Sepehr A Torabian S Moalej A Dehnavi AR Yari AR Asgari

BACKGROUND Water filtration units have been faced problems in water turbidity removal related to their media, which is determined by qualitative indices. Moreover, Current qualitative indices such as turbidity and escaping particle number could not precisely determine the efficiency of the media in water filtration, so defining new indices is essential. In this study, the efficiency of Anthraci...

Journal: :The Journal of Cell Biology 1966
Donald F. Hoelzl Wallach Virendra B. Kamat Mitchell H. Gail

Specific turbidities, densities, and refractive indices of fragments of plasma membrane (PM) and endoplasmic reticulum (ER) from Ehrlich ascites carcinoma have been measured. A spherical shell model of specified dimensions and refractive index was established for PM fragments. The ionic composition of the dispersion medium was varied systematically. Increases in Gamma/2 caused increases in the ...

2009
MARK W. CARTER DANIEL E. SHOUP JOHN M. DETTMERS DAVID H. WAHL

—Environmental factors such as turbidity and habitat complexity affect many aspects of aquatic food webs, including predator–prey interactions. We examined the effects of turbidity (0, 5, 10, 20, 40 nephelometric turbidity units [NTU]) and cover (presence or absence) on prey selection by adult smallmouth bass Micropterus dolomieu (mean 6 SD 1⁄4 290 6 41 mm total length) in laboratory pools. Ind...

Journal: :archives of hygiene sciences 0
zahra ahmadli department of environmental health engineering, school of public health, qom university of medical sciences, qom, iran. mohammad fahiminia research center for environmental pollutants, qom university of medical sciences, qom, iran. reza ansari qom water and wastewater company, qom, iran. maryam savadkouhi department of environmental health engineering, school of public health, qom university of medical sciences, qom, iran. azita anbaz department of environmental health engineering, school of public health, qom university of medical sciences, qom, iran. akbar escandari department of environmental health engineering, school of public health, qom university of medical sciences, qom, iran.

background & aims of the study: drinking polluted water can transmit diseases, so potable water treatment is one of the most challenging and complex systems in countries. continuous monitoring for evaluation process in water treatment plant is important. this study aims to investigate performance evaluation of qom water treatment plant to remove turbidity and coliform in 2005 - 2014. materials ...

Journal: :Remote Sensing 2017
Ishan D. Joshi Eurico J. D'Sa Christopher L. Osburn Thomas S. Bianchi

Synoptic monitoring of estuaries, some of the most bio-diverse and productive environments on Earth, is essential to study small-scale water dynamics and its role on spatiotemporal variation in water quality important to indigenous marine species and surrounding human settlements. We present a detailed study of turbidity, an optical index of water quality, in Apalachicola Bay, Florida (USA) usi...

2006

We studied the effects of inorganic turbidity on the efficiency of perch (Perca fluviatilis) feeding on the cladoceran Sida crystallina attached to floating macrophyte leaves together with the effects of the floating leaves on the light environment. We expected feeding efficiency to decrease constantly along an increasing turbidity gradient without an enhancement in moderate turbidity values, a...

2012
Chia-Ling Chang Chung-Sheng Liao

The present study focuses on the discussion over the parameter of Artificial Neural Network (ANN). Sensitivity analysis is applied to assess the effect of the parameters of ANN on the prediction of turbidity of raw water in the water treatment plant. The result shows that transfer function of hidden layer is a critical parameter of ANN. When the transfer function changes, the reliability of pre...

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