scholarly journals Supported CuII Single Ion Catalyst for Total‐carbon Utilization of C2‐C3 Biomass‐based Platform Molecules in N‐Formylation of Amines

2021 ◽  
Author(s):  
Xingchao Dai ◽  
Xinzhi Wang ◽  
Jabor Rabeah ◽  
Carsten Kreyenschulte ◽  
Angelika Brückner ◽  
...  
Keyword(s):  
Total Carbon ◽  
Carbon Utilization

Supported Cu II Single‐Ion Catalyst for Total Carbon Utilization of C 2 and C 3 Biomass‐Based Platform Molecules in the N‐Formylation of Amines

2021 ◽  
Author(s):  
Xingchao Dai ◽  
Xinzhi Wang ◽  
Jabor Rabeah ◽  
Carsten Kreyenschulte ◽  
Angelika Brückner ◽  
...  
Keyword(s):  
Total Carbon ◽  
Carbon Utilization

Catalytic Conversion of Furfural into a 2,5-Furandicarboxylic Acid-Based Polyester with Total Carbon Utilization

ChemSusChem ◽  
2012 ◽  
Vol 6 (1) ◽  
pp. 47-50 ◽  
Author(s):  
Tao Pan ◽  
Jin Deng ◽  
Qing Xu ◽  
Yong Zuo ◽  
Qing-Xiang Guo ◽  
...  
Keyword(s):  
Catalytic Conversion ◽  
Total Carbon ◽  
Carbon Utilization ◽  
Furandicarboxylic Acid

scholarly journals Enhancing Carbon Utilization and Adsorption Performance of Sludge Derived Activated Carbon through Molten Salt Synthesis Method

2021 ◽  
Author(s):  
En Shi ◽  
Xinyu Wang ◽  
Miao Zhang ◽  
Xin Wang ◽  
Jianchun Gao ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Molten Salt ◽  
Carbon Emissions ◽  
Chemical Activation ◽  
Total Carbon ◽  
Molten Salt Synthesis ◽  
Activation Process ◽  
Mass Ratio ◽  
Carbon Utilization ◽  
Carbon Mass

Abstract Sewage sludge is carbonaceous organic material and an inevitable by-product of biological wastewater treatment process. The traditional sludge disposal routes may cause serious pollution risks, e. g. large amounts of carbon emissions. Molten salt synthesis (MSS) method could complete the carbonization and activation two processes within a single-step, and the complexity of chemical activation process could be significantly reduced. In this work, sludge derived activated carbon (SDAC) was prepared by MSS method with ZnCl2 . The mass ratio of ZnCl2 to sludge had a significant effect on both the physicochemical properties and surface chemistry of SDAC. As the mass ratio of ZnCl2 to sludge was 1, the maximum specific surface area of SDAC was 549.72 m2/g. The maximum adsorbing capacity of methylene blue (MB) and CO2 were 0.0786 and 0.0575 mg/mg(SDAC), respectively. The highest yield and carbon utilization potential of SDAC were 517.87 mg(SDAC)/g(sludge) and 178.56 mg(carbon)/g(sludge), respectively. According to carbon mass balance, the total carbon mass in SDAC adsorbed MB and CO2 can be achieved to 203.00 and 186.68 mg(carbon)/g(sludge), respectively. It was suggested that MSS method can be used to reduce carbon emissions and improve carbon adsorption during SDAC preparation.

scholarly journals Triclosan causes toxic effects to algae in marine biofilms, but does not inhibit the metabolic activity of marine biofilm bacteria

2014 ◽  
Author(s):  
C. Henrik Johansson ◽  
Lisa Janmar ◽  
Thomas Backhaus
Keyword(s):  
Test System ◽  
Total Carbon ◽  
Carbon Utilization ◽  
Static Test ◽  
Biolog Ecoplates ◽  
Marine Biofilms ◽  
Utilization Patterns ◽  
Biofilm Bacteria ◽  
As Effects ◽  
Stimulation Of

Effects of the antimicrobial agent triclosan to natural periphyton communities (biofilms, comprising primarily microalgae and bacteria) were assessed in two independent experiments during spring and summer. For that purpose a semi-static test system was used in which periphyton was exposed to a concentration range of 5 – 9 054 nmol/L triclosan. Effects on algae were analyzed as content and composition of photosynthetic pigments. The corresponding EC50 values were 39.25 and 302.45 nmol/L for the spring and summer experiment respectively. Effects on periphytic bacteria were assessed as effects on carbon utilization patterns, using Biolog Ecoplates. No inhibition of either total carbon utilization or functional diversity was observed, indicating a pronounced triclosan tolerance of the marine bacteria. In contrast, a small stimulation of the total carbon utilization was observed at triclosan concentrations exceeding 100 nmol/L.

scholarly journals Triclosan causes toxic effects to algae in marine biofilms, but does not inhibit the metabolic activity of marine biofilm bacteria

2014 ◽  
Author(s):  
C. Henrik Johansson ◽  
Lisa Janmar ◽  
Thomas Backhaus
Keyword(s):  
Test System ◽  
Total Carbon ◽  
Carbon Utilization ◽  
Static Test ◽  
Biolog Ecoplates ◽  
Marine Biofilms ◽  
Utilization Patterns ◽  
Biofilm Bacteria ◽  
As Effects ◽  
Stimulation Of

Effects of the antimicrobial agent triclosan to natural periphyton communities (biofilms, comprising primarily microalgae and bacteria) were assessed in two independent experiments during spring and summer. For that purpose a semi-static test system was used in which periphyton was exposed to a concentration range of 5 – 9 054 nmol/L triclosan. Effects on algae were analyzed as content and composition of photosynthetic pigments. The corresponding EC50 values were 39.25 and 302.45 nmol/L for the spring and summer experiment respectively. Effects on periphytic bacteria were assessed as effects on carbon utilization patterns, using Biolog Ecoplates. No inhibition of either total carbon utilization or functional diversity was observed, indicating a pronounced triclosan tolerance of the marine bacteria. In contrast, a small stimulation of the total carbon utilization was observed at triclosan concentrations exceeding 100 nmol/L.

Evaluation of Renal Function of Apparently Healthy Male Cannabis Smokers of College of Health Sciences, Nnewi Campus, Anambra State, Nigeria

2018 ◽  
Vol 4 (01) ◽  
Author(s):  
Analike Rosemary Adamma ◽  
Emekwue Loveth ◽  
Ogbodo Emmanuel Chukwuemeka ◽  
Ezeugwunne Ifeoma Priscilla ◽  
Onoh Joy Obioma ◽  
...  
Keyword(s):  
Uric Acid ◽  
Cannabis Sativa ◽  
Demographic Data ◽  
Cannabis Use ◽  
Total Carbon ◽  
Total Calcium ◽  
Healthy Male ◽  
Anambra State ◽  
Control Subjects ◽  
Apparently Healthy

The use of Cannabis sativa is on the increase worldwide especially among adolescents and youths. This study investigated the effect of cannabis smoking on renal functions in young and apparently healthy male students of Nnamdi Azikiwe University, Nnewi campus, Anambra state, Nigeria. A total of 60 male (40 cannabis smokers and 20 controls) subjects participated in this study. A well-structured questionnaire was used to obtain the demographic data and anthropometric of subjects. Thereafter, 5mls of fasting blood sample was collected from the subjects into plain container for the estimation of biochemical parameters (creatinine, urea, uric acid, electrolytes). Renal parameters were estimated using standard methods. Data obtained were statistically analyzed using paired student t-test and pearson r correlation. Result showed that the mean serum levels of urea, creatinine, K+, Na+, Cl-, ionized calcium, total calcium, total carbon dioxide, anion gap, and pH were not significantly different in both smokers and control subjects(p>0.05). However, there was significantly higher mean serum level of uric acid (2.42 ± 38.54 vs 1.92 ± 41.61; p<0.05) and total calcium (16.0 ± 0.30 vs 10.24 ± 0.18; p<0.05) in smokers compared with control subjects. Again, BMI was significantly higher in smokers compared with non-smokers (23.96 ± 3.15; p<0.05 Vs 21.95 ± 2.17; p<0.05). Therefore, cannabis use had no deleterious effect on the kidneys, but the significantly higher uric acid levels in the smokers may provide some anti-oxidant protection. However, further studies are necessary to further unravel the full potentials of cannabis use.

CARBON FOOTPRINT ASSESSMENT AT UNIVERSITI TEKNOLOGI MARA SERI ISKANDAR CAMPUS, MALAYSIA

2017 ◽  
Vol 2 (1) ◽  
pp. 59
Author(s):  
Nor Izana Mohd Shobri ◽  
Wan Noor Anira Hj Wan Ali ◽  
Norizan Mt Akhir ◽  
Siti Rasidah Md Sakip
Keyword(s):  
Total Energy ◽  
Carbon Footprint ◽  
Electrical Power ◽  
Total Carbon ◽  
Green House ◽  
Green House Gas ◽  
Carbon Footprint Assessment ◽  
The University ◽  
Electrical Consumption

The purpose of this study is to assess the carbon footprint emission at UiTM Perak, Seri Iskandar Campus. The assessment focuses on electrical power and transportation usage. Questionnaires were distributed to the staffs and students to survey their transportation usage in the year 2014 while for electrical consumption, the study used total energy consumed in the year 2014. Data was calculating with the formula by Green House Gas Protocol. Total carbon footprint produced by UiTM Perak, Seri Jskandar Campus in the year 2014 is 11842.09 MTC02' The result of the study is hoped to provide strategies for the university to reduce the carbon footprint emission.

TRANSFORMATION FEATURES OF THE DRAINED PEAT-PODZOL GLEY SOILS UNDER LONG-TERM AGRICULTURAL USE

1970 ◽  
pp. 25-28
Author(s):  
V. А. Shevchenko ◽  
A. V. Nefedov ◽  
A. V. Ilinskiy ◽  
А. Е. Morozov
Keyword(s):  
Humus Horizon ◽  
Total Carbon ◽  
Mineral Fertilizers ◽  
Peat Layer ◽  
Organic And Mineral Fertilizers ◽  
Mineralization Processes ◽  
Agricultural Use ◽  
Phosphorus And Potassium ◽  
Plough Layer

Long-term observations of the drained soil of peat-podzolic-gley light loam on ancient alluvial sands state on the example of the meliorative object "Tinky-2" showed that under the influence of agricultural use in the soil, the organic matter mineralization processes are accelerated. During the drainage process, the soil evolutionarily suffered the following changes: the peat layer was compacted, humified and mineralized, which was a reason of the transformation them into the humus horizon. Based on the monitoring studies results it was established that during 21 intensive use years the peat layer thickness was decreased by 74.5% and amounted to 5.51 inch, which in the following 20 years was decreased to a layer of 1.18 inch, and for another 14 years it became a homogeneous humus horizon containing difficulty identifiable plant remains. For half a century, the bulk density increased by 6 times and the total moisture capacity of the soil decreased by 3.6 times. Other indicators were changed significantly. So, the ash content by 2016 increased from 11.2% to 52.7%. It was a reason of the plough-layer decreasing and it mixes with the mineral sand horizon during plowing. It should also be noted that the total nitrogen content in the soil decreased by 1.13%, and total carbon by 15.3% from 1982 to 2016. The dynamics of changes in the soil acidity, phosphorus and potassium content is associated with the introduction of calcareous, organic and mineral fertilizers in the 1980s. The unsystematic exploitation of such soils leads to decrease in the agricultural products productivity and increase in energy costs. When planning these soils usage in agricultural production, it is necessary to develop and implement modern melioration technologies and techniques aimed to increase soil fertility.

Sign in / Sign up

Export Citation Format

Share Document