نتایج جستجو برای: turbidity

تعداد نتایج: 6210  

2011
Maria Francisca Simas Teixeira Jerusa Souza Andrade Ormezinda Celeste Cristo Fernandes Nelson Durán José Luiz de Lima Filho

Cupuaçu (Theobroma grandiflorum Schum) is an Amazonian Basin native fruit whose fruit pulp is consumed as a juice which presents high density, viscosity, and turbidity. Pectic enzymes, usually yielded by microorganisms, are used to reduce the juice viscosity and turbidity. The present study aims to evaluate the use of pectic enzymes when processing cupuaçu juice. The cupuaçu juice was obtained ...

Journal: :Computers & Geosciences 2018
Jose J. Camata Vítor Silva Sousa Patrick Valduriez Marta Mattoso Alvaro L. G. A. Coutinho

Turbidity currents are underflows responsible for sediment deposits that generate geological formations of interest for the oil and gas industry. libMesh-sedimentation is an application built upon the libMesh library to simulate turbidity currents. In this work, we present the integration of libMesh-sedimentation with in situ visualization and in transit data analysis tools. DfAnalyzer is a sol...

2010
Toyoshi Shimomai Yuzuru Endo Kyohei Sakai Yuji Sakuno Toshiaki Kozu

We have been studying the turbidity estimation for Lakes Shinji and Nakaumi, Shimane Prefecture Japan using satellite sensors. Recently, we have developed a turbidity monitoring system for this area using near-real-time MODIS 250-m resolution band reflectance data which have been provided from Japan Aerospace Exploration Agency (JAXA). MODIS sensors on-board the Terra and Aqua satellites visit ...

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. Materia...

2015
Sang-Hyuk Park Jayong Koo

This study develops a sedimentation process model that simulate the effects of inflow water quality, treatment flow rate and outflow water quality. The model uses transfer function ARIMA (Auto-Regressive Moving Average) for reflecting the dynamic characteristics of the system The sedimentation model for outflow water turbidity are separated into low and high turbidity by input variables, turbid...

2013

The effect of polyelectrolytes; cationic and anionic charges and coagulants have been investigated for fresh activated sludge at different concentrations and pH values in a comparative fashion. The results from the experiments indicate that the cationic polyelectrolytes have a significant effluence on the sludge characteristic, degree of flocculation and water quality such as turbidity and SVI....

2008
Angela G. Poovey Michael D. Netherland Wendy Crowell

PURPOSE: A small-scale study was conducted to evaluate fluridone (1-methyl-3-phenyl-5-[3trifluoromethyl)phenyl]-4(1H)-pyridinone) efficacy under varying levels of turbidity when controlling curlyleaf pondweed (Potamogeton crispus L.). There is no information on the effect of turbidity on fluridone efficacy against curlyleaf pondweed. It is unknown if turbidity impacts aqueous fluridone concentr...

Journal: :Clinical chemistry 1984
C P Flack J W Woollen

In assay of serum proteins by use of the biuret reaction, dextran can cause turbidity by formation of an insoluble complex of dextran with copper and tartrate (or EDTA) in strongly alkaline solution. Whether or not the turbidity occurs depends on the tartrate concentration: turbidity is maximal at about 10 g/L, absent at 20 g/L or more, and only slight and delayed at 4 g/L. Two biuret reagents,...

2009
L. J. Xu B. W. Sheldon D. K. Larick R. E. Carawan

The efficacy of a laboratory electrocoagulation (EC) system for treating egg processing plant wastewater (WW) is reported. For simulated and industrial egg processingWW, chemical oxygen demand, turbidity, and total suspended solids (TSS) were reduced 92 to 97%, 97%, and 99%, respectively, after treatment with EC. The final TSS concentration and turbidity values were 30 mg/ L and 5 formazin turb...

Journal: :مجله بهداشت محیط و توسعه پایدار 0
majid farhadi 1msc,environmental health engineering, school of health, ahvaz jundishapur university of medical sciences, ahvaz, iran afshin takdastan associate prof. environmental technologies research center , ahvaz jundishapur university of medical sciences, ahvaz, iran roghayeh baghbany msc, school of health, ahvaz jundishapur university of medical sciences, ahvaz, iran

introduction: colloidal materials and suspended solids cause turbidity in water. to remove turbidity, clarification method is used that includes processes of coagulation, flocculation, and sedimentation. due to the long duration of coagulation process, coagulant aids are applied. despite the favorable efficiency of synthetic polyelectrolytes as a coagulant aid, due to their harmful effects on h...

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