نتایج جستجو برای: h2o2 concentration

تعداد نتایج: 392954  

Journal: :Agronomy 2021

The reuse of drainages for cultivating more salt tolerant crops can be a useful tool especially in arid regions, where there are severe problems water management. Dracaena deremensis L. plants were cultured pots with sphagnum peat-moss and subjected to three fertigation treatments 8 weeks: control treatment or standard nutrient solution (D0), raw leachates from Chrysalidocarpus lutescens H. Wen...

Journal: :Antioxidants & redox signaling 2017
Helmut Sies Ludwig E Feinendegen

Hydrogen peroxide (H2O2) is a stable product of water radiolysis, occurring at nanomolar concentration upon low-dose ionizing radiation (LDIR) (<100 mGy). In view of the recent recognition of H2O2 as a central redox signaling molecule that, likewise, is maintained in the nanomolar range in cells, we propose a role for H2O2 in radiation hormesis. LDIR is capable of utilizing known molecular redo...

Journal: :International Journal of Chemical Engineering 2022

Ozonation is one of the most effective and efficient advanced oxidation processes (AOPs) has shown great potential in treatment industrial effluent wastewater. In present work, ozone-Fenton process for % COD color removal together with electrical energy per order (EE/O) determination distillery wastewater (DIW) was established. The developed by combining ozone (O3) Fenton (Fe2+/H2O2) process. (...

Journal: :Applied and environmental microbiology 1976
Y Yoshpe-Purer Y Henis

Composition of the culture medium, growth phase, and temperature play important roles in the sensitivity of Escherichia coli to H2O2. The medium and growth phase affected the sensitivity of the cells to H2O2 by modifying the amount of catalase synthesized by them, whereas the effect of temperature was due to the thermolability of the enzyme. Since catalase is unstable in the presence of its sub...

اسدی, انور, دهقانی, محمد هادی, راستکاری, نوشین, محوی, امیر حسین, ناصری, سیمین,

Background and Aim: Common sources of chromium in wastewater are electroplating and leather industries. Thus, the present study aimed at investigating and comparing between chemical (H2O2) method and nano-photocatalytical(UV/ZnO) method in removing of Cr(VI) from polluted water. Materials and Methods: In this experimental-analytical study, effective factors on reduction process such as ZnO (0.0...

Journal: :The Analyst 2015
Himali Somaweera Shehan O Haputhanthri Akif Ibraguimov Dimitri Pappas

A microfluidic diffusion diluter was used to create a stable concentration gradient for dose response studies. The microfluidic diffusion diluter used in this study consisted of 128 culture chambers on each side of the main fluidic channel. A calibration method was used to find unknown concentrations with 12% error. Flow rate dependent studies showed that changing the flow rates generated diffe...

2015
Lihua Yang Maojun Jin Pengfei Du Ge Chen Chan Zhang Jian Wang Fen Jin Hua Shao Yongxin She Shanshan Wang Lufei Zheng Jing Wang Tobias Eckle

A luminol-H2O2-HRP chemiluminescence system with high relative luminescent intensity (RLU) and long stabilization time was investigated. First, the comparative study on the enhancement effect of ten compounds as enhancers to the luminol-H2O2-HRP chemiluminescence system was carried out, and the results showed that 4-(imidazol-1-yl)phenol (4-IMP), 4-iodophenol (4-IOP), 4-bromophenol (4-BOP) and ...

The metal-assisted chemical etching (MACE) was used to synthesis silicon nanowires. The effect of etchant concentration, etching and chemical plating time and doping density on silicon nanowires length were investigated. It is held that the increasing of HF and H2O2 concentrations lead to etching rate increment and formation of wire-like structure. The results show that, the appropriate ratio o...

Journal: :archives of hygiene sciences 0
javad hosseini department of chemistry, tuyserkan branch, islamic azad university, tuyserkan, iran. aref shokri young researchers and elite club, arak branch, islamic azad university, arak, iran.

background & aims of the study: toluene-2, 4-diamine (tda) is a famous carcinogenic aromatic amine that is mostly employed as an intermediate in the production of dyes and toluene diisocyanate. in this study, degradation and mineralization of tda were investigated by uv/h2o2 process. materials & methods: this study is an experimental investigation on a laboratory scale. the study performed on s...

2015
Vivek P Bhange SPM Prince William Abhinav Sharma Jagdish Gabhane Atul N Vaidya Satish R Wate

Garden biomass (GB) is defined as low density and heterogeneous waste fraction of garden rubbish like grass clippings, pruning, flowers, branches, weeds; roots. GB is generally different from other types of biomass. GB is mostly generated through maintenance of green areas. GB can be processed for bio energy production as it contains considerably good amount of cellulose and hemicellulose. Howe...

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