Review of Large Scale Algal Turf Scrubber® Algae Based Water Treatment Systems and Algal Biomass Production and Use

2009 ◽  
Vol 2009 (7) ◽  
pp. 7972-7977
Author(s):  
Kimberleigh C. Dinkins ◽  
Mark J. Zivojnovich ◽  
E. Allen Stewart ◽  
Robinson Bazurto
Keyword(s):  
Water Treatment ◽  
Biomass Production ◽  
Algal Biomass ◽  
Large Scale ◽  
Algal Turf ◽  
Algal Turf Scrubber

A new model of Algal Turf Scrubber for bioremediation and biomass production using seaweed aquaculture principles

2021 ◽  
Author(s):  
Kely Paula Salvi ◽  
Willian da Silva Oliveira ◽  
Paulo Antunes Horta ◽  
Leonardo Rubi Rörig ◽  
Eduardo de Oliveira Bastos
Keyword(s):  
Biomass Production ◽  
Algal Turf ◽  
New Model ◽  
Seaweed Aquaculture ◽  
Algal Turf Scrubber

Stirring and aeration system for the upgrading of small waste water treatment plants

1994 ◽  
Vol 29 (12) ◽  
pp. 149-156 ◽  
Author(s):  
Marcus Höfken ◽  
Katharina Zähringer ◽  
Franz Bischof
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Large Scale ◽  
Waste Water Treatment ◽  
Water Treatment Plants ◽  
Waste Water Treatment Plants ◽  
Basic Fluid ◽  
Aeration System ◽  
Technical Realization ◽  
Wide Range

A novel agitating system has been developed which allows for individual or combined operation of stirring and aeration processes. Basic fluid mechanical considerations led to the innovative hyperboloid design of the stirrer body, which ensures high efficiencies in the stirring and the aeration mode, gentle circulation with low shear forces, excellent controllability, and a wide range of applications. This paper presents the basic considerations which led to the operating principle, the technical realization of the system and experimental results in a large-scale plant. The characteristics of the system and the differences to other stirring and aeration systems are illustrated. Details of the technical realization are shown, which conform to the specific demands of applications in the biological treatment of waste water. Special regard is given to applications in the upgrading of small compact waste water treatment plants.

Design, Operating Results and Experiences of Two Large-Scale Treatment Plants with Biological Nitrogen and Phosphate Elimination

1992 ◽  
Vol 25 (4-5) ◽  
pp. 225-232
Author(s):  
C. F. Seyfried ◽  
P. Hartwig
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Large Scale ◽  
Waste Water Treatment ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Waste Water Treatment Plant ◽  
Main Stream ◽  
Side Stream ◽  
Biological Nitrogen

This is a report on the design and operating results of two waste water treatment plants which make use of biological nitrogen and phosphate elimination. Both plants are characterized by load situations that are unfavourable for biological P elimination. The influent of the HILDESHEIM WASTE WATER TREATMENT PLANT contains nitrates and little BOD5. Use of the ISAH process ensures the optimum exploitation of the easily degradable substrate for the redissolution of phosphates. Over 70 % phosphate elimination and effluent concentrations of 1.3 mg PO4-P/I have been achieved. Due to severe seasonal fluctuations in loading the activated sludge plant of the HUSUM WASTE WATER TREATMENT PLANT has to be operated in the stabilization range (F/M ≤ 0.05 kg/(kg·d)) in order not to infringe the required effluent values of 3.9 mg NH4-N/l (2-h-average). The production of surplus sludge is at times too small to allow biological phosphate elimination to be effected in the main stream process. The CISAH (Combined ISAH) process is a combination of the fullstream with the side stream process. It is used in order to achieve the optimum exploitation of biological phosphate elimination by the precipitation of a stripped side stream with a high phosphate content when necessary.

Advances in Water Treatment Application of Sepiolite Mineral Materials

2013 ◽  
Vol 710 ◽  
pp. 217-220 ◽  
Author(s):  
Fei Wang ◽  
Lei Feng ◽  
Meng Ran Tang ◽  
Ji Yuan Li ◽  
Qing Guo Tang
Keyword(s):  
Water Treatment ◽  
Size Effect ◽  
Large Scale ◽  
Surface Effect ◽  
Development Trend ◽  
High Energy ◽  
Research Area ◽  
Group Mineral ◽  
Active Research ◽  
Treatment Application

Synthetic nanomaterials have the disadvantages of large-scale investment, high energy consumption, complex production process and heavy environmental load. Mineral nanomaterials such as sepiolite group mineral nanomaterials are characterized by small size effect, quantum size effect and surface effect. Water treatment application of sepiolite group mineral nanomaterials has become an active research area and showed good development and application prospects. Based on the above reasons, this paper systematically summarizes the water treatment application of sepiolite group mineral nanomaterials, and development trend related to water treatment application of sepiolite group mineral nanomaterials were also proposed.

A CFD-based simulation study of a large scale flocculation tank for potable water treatment

2010 ◽  
Vol 162 (1) ◽  
pp. 208-216 ◽  
Author(s):  
K. Samaras ◽  
A. Zouboulis ◽  
T. Karapantsios ◽  
M. Kostoglou
Keyword(s):  
Water Treatment ◽  
Simulation Study ◽  
Large Scale ◽  
Potable Water ◽  
Potable Water Treatment

Kinetics, mass transfer, and mass re-equilibrium for arsenate adsorption on iron oxide-based carbons

2018 ◽  
Author(s):  
◽  
Zhengyang Wang
Keyword(s):  
Mass Transfer ◽  
Water Treatment ◽  
Large Scale ◽  
Freundlich Isotherm ◽  
Small Scale ◽  
Crossover Point ◽  
Hydraulic Residence Time ◽  
In Situ Extraction ◽  
Small Water ◽  
Batch Tests

[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Removal of arsenic (As) from drinking water sources is much needed worldwide, and small water treatment systems, such as point-of-use (POU) treatment, could be an effective solution for residential applications. Adopting existing removal technologies that are successful in large-scale treatment to small-scale units, however, is rather ineffective due to the short hydraulic residence time in small water treatment systems. … The Freundlich isotherm can fit experimental data well: a crossover point for the two fitted Freundlich isotherms was observed and nano-FeAC had higher adsorption plateau. Furthermore, we demonstrated that due to the MRE process, a pseudo-equilibrium of FeMC was altered to another steady state by an in situ extraction with nano-FeAC in both batch and column systems. The overall inter-medium mass transfer resulted in both improved adsorption densities obtained by batch tests and a large bed volume prior to the 10 [mu]g As/L breakthrough at a short empty bed contact time (0.85 min).

Hollow Fiber Microfiltration and Ultrafiltration Products for High Purity Water Treatment Applications

2001 ◽  
Author(s):  
Randal M. Wenthold
Keyword(s):  
Water Treatment ◽  
Medical Device ◽  
Hollow Fiber ◽  
High Purity ◽  
Large Scale ◽  
Flat Sheet ◽  
Fiber Technology ◽  
Flat Sheet Membrane ◽  
Sheet Membrane ◽  
Filtration Device

Abstract For years in the semiconductor inductor industry the only choice individuals had for microfiltration or ultrafiltration devices consisted of flat sheet membrane manufactured into spiral wound or pleated filtration products. Polysulfone hollow fiber technology has evolved in the medical device industry for use as the highest purity type filtration device available. This unique technology is now available for use in the semiconductor business segment as well with product offerings that may be used in laboratory to large-scale applications.

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