scholarly journals VUV-photolysis of aqueous solutions of hydroxylamine and nitric oxide. Effect of organic matter: phenol

2019 ◽  
Vol 18 (9) ◽  
pp. 2240-2247
Author(s):  
Mónica C. Gonzalez ◽  
André M. Braun
Keyword(s):  
Nitric Oxide ◽  
Organic Matter ◽  
Aqueous Solutions ◽  
Organic Substrate ◽  
Vuv Photolysis

VUV-irradiation of aqueous solutions containing, both, hydroxylamine (NH2OH/NH3OH+) and phenol results in the mineralization of the organic substrate and the quantitative reduction of NH3OH+ to NH4+ ions.

Radiolysis of aqueous solutions of nitric oxide

1967 ◽  
Vol 63 ◽  
pp. 2628 ◽  
Author(s):  
R. J. Knight ◽  
H. C. Sutton
Keyword(s):  
Nitric Oxide ◽  
Aqueous Solutions

Rapid removal of caffeine in aqueous solutions by peroxymonosulfate oxidant activated with cobalt ion

2015 ◽  
Vol 72 (3) ◽  
pp. 478-483 ◽  
Author(s):  
Yunleiyu Guo ◽  
Tingting Shen ◽  
Chen Wang ◽  
Jing Sun ◽  
Xikui Wang
Keyword(s):  
Aqueous Solution ◽  
Organic Matter ◽  
Aqueous Solutions ◽  
Ph Value ◽  
Neutral Condition ◽  
Operating Conditions ◽  
Operating Parameters ◽  
Negative Effects ◽  
Cobalt Ion ◽  
Rapid Removal

The removal of caffeine (CAF) in aqueous solution by peroxymonosulfate oxidant activated with cobalt ion was investigated under a variety of operating conditions. The effects of various operating parameters, such as oxone and Co2+ concentrations, pH value, and the coexistence of dissolved organic matter and inorganic anions on the removal of CAF have been investigated. The removal efficiency increased with the increase in the concentrations of oxone and Co2+ ion added. The additions of chloride, bicarbonate, and sodium humate have negative effects on the removal of CAF. Near-neutral condition (5.0 < pH < 7.0) is favorable for the removal of CAF. Based on our experiments, 100% degradation of 50 mg/L CAF can be achieved within 4 minutes under the conditions of 1.00 mM oxone and 0.10 mM Co2+ ion at pH 5.0–7.0.

scholarly journals SOIL MYCOFLORA OF BLACK PEPPER RHIZOSPHERE IN THE PHILIPPINES AND THEIR IN VITRO ANTAGONISM AGAINST Phytophthora capsici L.

2016 ◽  
Vol 5 (1) ◽  
pp. 1
Author(s):  
Rita Noveriza ◽  
Tricita H. Quimio
Keyword(s):  
Organic Matter ◽  
Phytophthora Capsici ◽  
Black Pepper ◽  
The Philippines ◽  
Culture Technique ◽  
Organic Substrate ◽  
Cropping Pattern ◽  
Dual Culture ◽  
Soil Mycoflora

Foot rot disease of black pepper caused by Phytophthora capsici had been reported in Batangas and Laguna, Philippines. The plant was recovered following the application of crop residue (organic substrate) and intercropping with other crops. This study was aimed to isolate, identify, and determine the soil mycoflora from the rhizosphere of black pepper grown on various cropping patterns in Batangas and Laguna. Antagonistic activity of mycoflora isolates was tested against P. capsici using dual culture technique. The result showed that 149 colonies of soil mycoflora isolated were belonging to 14 genera; three of them, i.e. Penicillium, Paecilomyces and Aspergillus, were the most dominant. All of the mycoflora isolates were able to inhibit the growth of the pathogen. Eighteen of them were the most promising antagonists, based on their inhibition growth of more than 60%. It is suggested that antagonistic mechanism of Mucor isolate (1001), Trichoderma (125, 170, 171, 179, 180, 181), Gliocladium (109), Cunninghamella (165, 168), Mortierella (177), and Aspergillus (106) was space competitor (competition for nutrient) since they rapidly overgrew the pathogen. Aspergillus (67, 79, 81, 83, 108, and 202) isolates inhibited the pathogen apparently by producing antibiotic, whereas Trichoderma (125, 170, 171, 179, 180, and 181) isolates were able to penetrate the hyphae of the pathogen. The organic matter percentage in the soil was significantly correlated with the number of antagonistic mycoflora in rhizosphere (R2 = 0.1094), but the cropping pattern was negatively correlated. This study suggests that organic matter increased antagonistic mycoflora in black pepper rhizosphere, which will reduce severity of the disease.

Nitrogen and oxygen exchange between nitric oxide and aqueous solutions of nitric acid

1973 ◽  
Vol 12 (6) ◽  
pp. 1369-1373 ◽  
Author(s):  
Siegfried Jordan ◽  
Francis T. Bonner
Keyword(s):  
Nitric Oxide ◽  
Nitric Acid ◽  
Aqueous Solutions ◽  
Oxygen Exchange

Half-life of nitric oxide in aqueous solutions with and without haemoglobin

1996 ◽  
Vol 17 (4) ◽  
pp. 267-277 ◽  
Author(s):  
T S Hakim ◽  
K Sugimori ◽  
E M Camporesi ◽  
G Anderson
Keyword(s):  
Nitric Oxide ◽  
Aqueous Solutions ◽  
Half Life

Highly efficient absorption of nitric oxide by RuIII(edta) aqueous solutions at low concentrations

2019 ◽  
Vol 41 (21) ◽  
pp. 2705-2715 ◽  
Author(s):  
Wenjin Xu ◽  
Chao Xu ◽  
Jun Deng ◽  
Guomeng Zhang ◽  
Guangxu Zhang
Keyword(s):  
Nitric Oxide ◽  
Aqueous Solutions ◽  
Highly Efficient ◽  
Low Concentrations
Sign in / Sign up

Export Citation Format

Share Document