A mathematical model for carbon fixation and nutrient removal by an algal photobioreactor

The Olifantsfontein Nutrient Removal Plant

Water Science & Technology ◽

10.2166/wst.1990.0224 ◽

1990 ◽

Vol 22 (7-8) ◽

pp. 1-8 ◽

Cited By ~ 4

Author(s):

J. A. van Huyssteen ◽

J. L. Barnard ◽

J. Hendriksz

Keyword(s):

Mathematical Model ◽

Activated Sludge ◽

South African ◽

Nutrient Removal ◽

Trickling Filter ◽

The South ◽

The University ◽

General Standard

The paper describes the upgrading of an existing trickling filter (TF) plant by adding a new activated sludge (AS) plant in order to remove nutrients from the combined effluent of both plants. In spite of the low COD/TKN ratio, good nitrogen and phosphate removals were obtained in the three-stage Bardenpho (AS) plant. This is at variance with the University of Capetown mathematical model which predicted that nutrient removal in this plant would not be possible due to predicted recycle of nitrates to the anaerobic basin. The results showed that the average effluent phosphate was below 1 mg P/ℓ while the ammonia and nitrates could be controlled to values well below the limits of the South African General Standard. Possible reasons for the anomaly are given.

Download Full-text

Design of nutrient removal activated sludge systems

Water Science & Technology ◽

10.2166/wst.2003.0594 ◽

2003 ◽

Vol 47 (11) ◽

pp. 115-122 ◽

Cited By ~ 4

Author(s):

J. Manga ◽

J. Ferrer ◽

A. Seco ◽

F. Garcia-Usach

Keyword(s):

Mathematical Model ◽

Activated Sludge ◽

Nutrient Removal ◽

Phosphorus Removal ◽

Pilot Plant ◽

Enhanced Biological Phosphorus Removal ◽

Biological Phosphorus Removal ◽

User Friendly ◽

Biological Phosphorus ◽

Activated Sludge Systems

A mechanistic mathematical model for nutrient and organic matter removal was used to describe the behavior of a nitrification denitrification enhanced biological phosphorus removal (NDEBPR) system. This model was implemented in a user-friendly software DESASS (design and simulation of activated sludge systems). A 484-L pilot plant was operated to verify the model results. The pilot plant was operated for three years over three different sludge ages. The validity of the model was confirmed with data from the pilot plant. Also, the utility of DESASS as a valuable tool for designing NDEBPR systems was confirmed.

Download Full-text

Comparative Shotgun Proteomic Analysis of Wastewater-Cultured Microalgae: Nitrogen Sensing and Carbon Fixation for Growth and Nutrient Removal inChlamydomonas reinhardtii

Journal of Proteome Research ◽

10.1021/pr501316h ◽

2015 ◽

Vol 14 (8) ◽

pp. 3051-3067 ◽

Cited By ~ 8

Author(s):

Anil K. Patel ◽

Eric L. Huang ◽

Etienne Low-Décarie ◽

Mark G. Lefsrud

Keyword(s):

Nutrient Removal ◽

Proteomic Analysis ◽

Carbon Fixation ◽

Nitrogen Sensing

Download Full-text

Effects of graphene oxide on algal cellular stress response: Evaluating metabolic characters of carbon fixation and nutrient removal

Chemosphere ◽

10.1016/j.chemosphere.2020.126566 ◽

2020 ◽

Vol 252 ◽

pp. 126566 ◽

Cited By ~ 1

Author(s):

Xiyan Ji ◽

Xin Li ◽

Shichao Wu ◽

Meifang Hou ◽

Yongjun Zhao

Keyword(s):

Graphene Oxide ◽

Stress Response ◽

Nutrient Removal ◽

Carbon Fixation ◽

Cellular Stress ◽

Cellular Stress Response

Download Full-text

The effects of light and temperature on microalgal growth and nutrient removal: an experimental and mathematical approach

RSC Advances ◽

10.1039/c5ra26117a ◽

2016 ◽

Vol 6 (27) ◽

pp. 22896-22907 ◽

Cited By ~ 34

Author(s):

Ana L. Gonçalves ◽

José C. M. Pires ◽

Manuel Simões

Keyword(s):

Mathematical Model ◽

Nutrient Removal ◽

Combined Effect ◽

Mathematical Approach ◽

Effect Of Light

A mathematical model describing the combined effect of light and temperature on microalgal growth was developed.

Download Full-text

Sectioned rubisco crystals in TEM

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s042482010016087x ◽

1990 ◽

Vol 48 (3) ◽

pp. 664-665

Author(s):

Gunnel Karlsson ◽

Jan-Olov Bovin ◽

Michael Bosma

Keyword(s):

Plant Cell ◽

Carbon Fixation ◽

Unit Cell ◽

Protein Crystals ◽

Unit Cell Parameters ◽

Cell Parameters ◽

Photosynthetic Carbon Fixation ◽

Photosynthetic Carbon

RuBisCO (D-ribulose-l,5-biphosphate carboxylase/oxygenase) is the most aboundant enzyme in the plant cell and it catalyses the key carboxylation reaction of photosynthetic carbon fixation, but also the competing oxygenase reaction of photorespiation. In vitro crystallized RuBisCO has been studied earlier but this investigation concerns in vivo existance of RuBisCO crystals in anthers and leaves ofsugarbeets. For the identification of in vivo protein crystals it is important to be able to determinethe unit cell of cytochemically identified crystals in the same image. In order to obtain the best combination of optimal contrast and resolution we have studied different staining and electron accelerating voltages. It is known that embedding and sectioning can cause deformation and obscure the unit cell parameters.

Download Full-text