Long-term effects of CuO nanoparticles on the surface physicochemical properties of biofilms in a sequencing batch biofilm reactor

2016 ◽  
Vol 100 (22) ◽  
pp. 9629-9639 ◽  
Author(s):  
Jun Hou ◽  
Guoxiang You ◽  
Yi Xu ◽  
Chao Wang ◽  
Peifang Wang ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Cuo Nanoparticles ◽  
Biofilm Reactor ◽  
Long Term Effects ◽  
Sequencing Batch Biofilm Reactor ◽  
Surface Physicochemical Properties

Long-Term Effects of Tillage on Physicochemical Properties of Modified Andisol of Northeast Honshu Island

2001 ◽  
Author(s):  
M. H. Rahman ◽  
A. Tanaka ◽  
S. Kawai ◽  
S. Hoque ◽  
K. Fujii
Keyword(s):  
Physicochemical Properties ◽  
Long Term Effects ◽  
Honshu Island

Performance and microbial community of a sequencing batch biofilm reactor treating synthetic mariculture wastewater under long-term exposure to norfloxacin

2016 ◽  
Vol 222 ◽  
pp. 139-147 ◽  
Author(s):  
Dong Zheng ◽  
Qingbo Chang ◽  
Zhiwei Li ◽  
Mengchun Gao ◽  
Zonglian She ◽  
...  
Keyword(s):  
Microbial Community ◽  
Biofilm Reactor ◽  
Sequencing Batch Biofilm Reactor

scholarly journals Preparation and Evaluation of Physicochemical Properties of the Doxepin Mucoadhesive Gel

2020 ◽  
Vol 15 (4) ◽  
Author(s):  
Majid Rajaee ◽  
Amir Talachi ◽  
Abbas Pardakhty ◽  
Ehsan Mohajeri ◽  
Negar Dehghannoudeh ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Oral Mucosa ◽  
Slow Release ◽  
Hydroxypropyl Methylcellulose ◽  
Poloxamer 407 ◽  
Therapeutic Effects ◽  
Long Term Effects ◽  
Preparation And Evaluation

Background: Oral mucositis is a common debilitating complication of cancer chemotherapy and radiotherapy that can reduce the quality of patient’s lives. Hence, treating this condition plays an important role in increasing the patient’s tolerance. Objectives: Doxepin mucoadhesive gel is useful for treating oral mucosa inflammation caused by long-term effects of chemotherapy, which has low adverse effects. Methods: Doxepin gel’s formulation was prepared with various concentrations of poloxamer 407 and hydroxypropyl methylcellulose in deionized water. The prepared gels were evaluated for pH, appearance, viscosity, spreadability, stability, and drug release. Results: After providing gels containing doxepin, formulations 1, 2, 8, and 9 had low quality and, thus, were removed from the study. Based on qualitative evaluations, formulations 3 and 4 did not meet the criteria for mucoadhesive gel and were removed from the study. The best formulation contained 17% w/w poloxamer 407, 10% w/w hydroxypropyl methylcellulose, and 5% w/w doxepin. Conclusions: Suitable physicochemical properties of prepared doxepin mucoadhesive gel enable it to well cover inflamed and damaged oral mucosa. On the other hand, doxepin’s slow release from formulation (8 hours) can increase therapeutic effects and reduce side effects, which can heal and soothe inflammations of the oral mucosa and be useful in cancer patient’s treatment.

scholarly journals Long-term effects of lowland sawah system on soil physicochemical properties and rice yield in Ashanti Region of Ghana

2012 ◽  
Vol 10 (3) ◽  
pp. 838 ◽  
Author(s):  
S. E. Obalum ◽  
J. Oppong ◽  
J. C. Nwite ◽  
Y. Watanabe ◽  
M. M. Buri ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Rice Yield ◽  
Soil Physicochemical Properties ◽  
Long Term Effects ◽  
Ashanti Region

Strategies to improve the efficiency of tertiary nitrifying trickling filters

2000 ◽  
Vol 41 (4-5) ◽  
pp. 477-485 ◽  
Author(s):  
T. Wilk
Keyword(s):  
Biofilm Reactor ◽  
Trickling Filter ◽  
Long Term Effects ◽  
Filter Model ◽  
Trickling Filters ◽  
Biofilm Model ◽  
In Series ◽  
Flow Through ◽  
Operating Strategies

The long term effects of the conditions for a biofilm reactor are governed by slow microbial processes, such as the growth and decay of the bacteria. Simulations of a trickling filter model based on a multi species dynamic biofilm model and data from an experiment, where an NTF had been alternatingly fed unnitrified and completely nitrified wastewater, agree fairly well. Two different operating strategies of NTFs are studied by simulation: periodically inversing the order of two NTFs in series and varying the flow through NTFs operating in parallel. The simulations indicate that both strategies have a potential of increasing the nitrifying capacity of filters operating at low ammonium load, provided the influent concentrations of organic matter are low. However, to what extent the capacity is increased depends on the specific death rate of the nitrifiers, which needs to be further studied.

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