Cell growth and removal capacity of ibuprofen and diclofenac by Parachlorella kessleri at bench scale

2021 ◽  
Author(s):  
Eliana M Jiménez‐Bambague ◽  
Juan S Florez‐Castillo ◽  
Rosa D Gómez‐Angulo ◽  
Paola A Morales‐Acosta ◽  
Enrique J Peña‐Salamanca ◽  
...  
Keyword(s):  
Cell Growth ◽  
Bench Scale ◽  
Removal Capacity ◽  
Parachlorella Kessleri

scholarly journals A Comparative Study of the Growth and Nutrient Removal Effects of Five Green Microalgae in Simulated Domestic Sewage

Water ◽  
2021 ◽  
Vol 13 (24) ◽  
pp. 3613
Author(s):  
Li Ji ◽  
Qili Ge ◽  
Yuan Li ◽  
Yifan Gao ◽  
Shulian Xie
Keyword(s):  
Nutrient Removal ◽  
Day Treatment ◽  
Oxygen Demand ◽  
Domestic Wastewater ◽  
Domestic Sewage ◽  
Growth Potential ◽  
Removal Capacity ◽  
Ammonium N ◽  
Parachlorella Kessleri ◽  
Good Potential

Microalgae have shown great potential in wastewater treatment. This study evaluates the growth and nutrient removal characteristics of five different microalgae strains, namely Chlorella vulgaris, Tetradesmus obliquus, Parachlorella kessleri, Hydrodictyon sp., and Scenedesmus quadricauda, in simulated domestic wastewater. The five microalgae could adapt to wastewater, but the growth potential and nitrogen removal capacity were species dependent. The nutrient removal effect of the microalgae used in this experiment was about 50% in the first two days. Parachlorella kessleri, selected from the five strains of green algae, shows good potential in removing nutrients from simulated domestic wastewater. For the simulated domestic sewage treated with Parachlorella kessleri, the chemical oxygen demand was almost completely reduced, and ammonium-N (NH4-N) and total nitrogen (TN) removal exceeded 70% at the end of the 10-day treatment. Total phosphorus (TP) removal was slightly worse, more than 65%. Parachlorella kessleri showed the best growth in sewage with the highest biomass reaching 366.67 mg L−1 and the highest specific growth rate reaching 0.538 d−1. This study can provide a reference for selecting suitable microalgae species to treat actual domestic sewage.

scholarly journals A minimum information standard for reproducing bench-scale bacterial cell growth and productivity

2018 ◽  
Vol 1 (1) ◽  
Author(s):  
Ariel Hecht ◽  
James Filliben ◽  
Sarah A. Munro ◽  
Marc Salit
Keyword(s):  
Cell Growth ◽  
Bacterial Cell ◽  
Minimum Information ◽  
Bench Scale

scholarly journals Bioremediation of Ni, Al and Pb by the living cells of a resistant strain of microalga

2020 ◽  
Vol 82 (5) ◽  
pp. 851-860
Author(s):  
Nourhane Ahmad ◽  
Jihane Rahbani Mounsef ◽  
Joyce Abou Tayeh ◽  
Roger Lteif
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Wastewater Treatment ◽  
Cell Growth ◽  
Metal Toxicity ◽  
Culture Medium ◽  
Industrial Effluents ◽  
Living Cells ◽  
Microalgae Culture ◽  
Removal Capacity

Abstract The microalgae treatment system is an economically and environmentally friendly option for wastewater treatment. However, the effects of heavy metal toxicity on microalgae cells can limit the use of microalgae in the treatment of industrial effluents rich in heavy metals. In this work, we studied the effect of Ni, Cu, Al, Hg and Pb, added as single-metal solutions to the microalgae culture medium, on the growth of 20 indigenous strains belonging to a wide variety of microalgae genera. Ni and Cu were the most toxic to the strains tested. A highly tolerant strain of the Phacus genera was selected. We determined the effect of multiple combinations of Ni, Al and Pb on the cell growth of the selected strain and on the removal capacity of each metal from the microalgae culture medium. Phacus was able to grow in the multi-metal solution (Ni, 5.00 mg/L; Al, 9.94 mg/L and Pb 1.00 mg/L) and to efficiently remove the metals, with removal capacities of 8.82 ±0.16 mg/g for Ni, 2.09 ± 0.05 mg/g for Pb and 16.90 ± 0.53 mg/g for Al. The reductions of Ni, Al and Pb concentrations were 66.67, 64.28 and 79.17% respectively.

Manganese removal in groundwater treatment: practice, problems and probable solutions

2009 ◽  
Vol 9 (1) ◽  
pp. 89-98 ◽  
Author(s):  
R. Buamah ◽  
B. Petrusevski ◽  
D. de Ridder ◽  
T. S. C. M. van de Wetering ◽  
J. C. Shippers
Keyword(s):  
Ferric Hydroxide ◽  
Manganese Concentration ◽  
Filter Media ◽  
Sand Filters ◽  
Operational Conditions ◽  
Treatment Practice ◽  
Bench Scale ◽  
Manganese Removal ◽  
Removal Capacity ◽  
Start Up

Most drinking water production plants use rapid sand filters for the removal of manganese from groundwater. The start-up of manganese removal on newly installed sand media is slow, taking several weeks till months. Reducing this period in order to prevent the loss of water during this phase has become an issue of concern. In this study pilot and bench scale experiments were conducted to investigate the mechanism, influence of operational conditions (e.g. filtration rate, manganese loading) and measures that enhance manganese removal capacity of the sand media. Other filter media were investigated with the objective of finding suitable substitutes for the sand. The development of the adsorptive/catalytic coating the sand media in a pilot plant was very slow, notwithstanding the relatively high pH of 8. Low manganese concentration and more frequent backwashing resulted in a longer start up period of the manganese removal. It can not be excluded, that nitrite has a negative effect as well. Measurements in the lab and bench scale tests show that the rate of adsorption/oxidation of manganese in the top layer of the filter bed is too low to explain the complete manganese removal in the filters. It is likely that the adsorptive catalyst in the top layer has partly been covered with ferric hydroxide. From the Freundlich's isotherms determined for 6 different filter media, a crushed medium consisting of mainly manganese dioxide and some silica, iron and aluminium (Aquamandix) followed by iron oxide coated sand, containing some manganese, demonstrated highest adsorption capacities at pHs 6 and 8. These materials can therefore be potential substitutes for sand in situations of slow start-up of manganese removal.

Electron Microscopic Study of the Epithelium of the Seminal Vesicle of Aging Rats

1974 ◽  
Vol 32 ◽  
pp. 138-139
Author(s):  
V. F. Allison ◽  
G. C. Fink ◽  
G. W. Cearley
Keyword(s):  
Cell Growth ◽  
Epithelial Cell ◽  
Epithelial Cells ◽  
Seminal Vesicle ◽  
Seminal Vesicles ◽  
Epithelial Layer ◽  
Epithelial Hyperplasia ◽  
Electron Microscopic ◽  
Aging Rats ◽  
Pseudostratified Epithelium

It is well known that epithelial hyperplasia (benign hypertrophy) is common in the aging prostate of dogs and man. In contrast, little evidence is available for abnormal epithelial cell growth in seminal vesicles of aging animals. Recently, enlarged seminal vesicles were reported in senescent mice, however, that enlargement resulted from increased storage of secretion in the lumen and occurred concomitant to epithelial hypoplasia in that species.The present study is concerned with electron microscopic observations of changes occurring in the pseudostratified epithelium of the seminal vescles of aging rats. Special attention is given to certain non-epithelial cells which have entered the epithelial layer.

Rotary Beveling for In Situ Thin-Section Microscopy of Cell Cultures

1981 ◽  
Vol 39 ◽  
pp. 550-551
Author(s):  
Dean A. Handley ◽  
Jack T. Alexander ◽  
Shu Chien
Keyword(s):  
Cell Growth ◽  
Cell Cultures ◽  
Molecular Interactions ◽  
Convenient Method ◽  
Petri Dish ◽  
Simple Method ◽  
Thin Section Microscopy ◽  
Thin Sectioning ◽  
Organic Fluids

In situ preparation of cell cultures for ultrastructural investigations is a convenient method by which fixation, dehydration and embedment are carried out in the culture petri dish. The in situ method offers the advantage of preserving the native orientation of cell-cell interactions, junctional regions and overlapping configurations. In order to section after embedment, the petri dish is usually separated from the polymerized resin by either differential cryo-contraction or solvation in organic fluids. The remaining resin block must be re-embedded before sectioning. Although removal of the petri dish may not disrupt the native cellular geometry, it does sacrifice what is now recognized as an important characteristic of cell growth: cell-substratum molecular interactions. To preserve the topographic cell-substratum relationship, we developed a simple method of tapered rotary beveling to reduce the petri dish thickness to a dimension suitable for direct thin sectioning.

414: Induction of LNCAP Cell Growth, Androgen-Independence and Bone Metastasis by Human Prostate Fibroblasts of Different Zonal Origin

2006 ◽  
Vol 175 (4S) ◽  
pp. 135-135
Author(s):  
George N. Thalmann ◽  
H. Rhee Atlanta ◽  
R.A. Sikes ◽  
S. Pathak ◽  
Haiyen E. Zhau ◽  
...  
Keyword(s):  
Bone Metastasis ◽  
Cell Growth ◽  
Lncap Cell ◽  
Human Prostate ◽  
Androgen Independence

794: Valproic Acid Inhibits Prostate Cancer Cell Growth in Vitro and in Vivo

2006 ◽  
Vol 175 (4S) ◽  
pp. 257-257
Author(s):  
Jennifer Sung ◽  
Qinghua Xia ◽  
Wasim Chowdhury ◽  
Shabana Shabbeer ◽  
Michael Carducci ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Valproic Acid ◽  
Cell Growth ◽  
Cancer Cell ◽  
Prostate Cancer Cell ◽  
Cancer Cell Growth
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