Anaerobic treatment of wastewater from a food-manufacturing plant with a low concentration of organic matter and regeneration of usable pure water

1994 ◽  
Vol 77 (3) ◽  
pp. 307-311 ◽  
Author(s):  
Kouhei Tanemura ◽  
Kenji Kida ◽  
Motowo Teshima ◽  
Yorikazu Sonoda
Keyword(s):  
Organic Matter ◽  
Pure Water ◽  
Anaerobic Treatment ◽  
Manufacturing Plant ◽  
Food Manufacturing ◽  
Low Concentration

scholarly journals Applicability of biological wastewater treatment for various industries

2021 ◽  
Vol 941 (1) ◽  
pp. 012001
Author(s):  
Basamykina Alena ◽  
Kurkina Ekaterina ◽  
Kameristaya Maria
Keyword(s):  
Organic Matter ◽  
Wastewater Treatment ◽  
Organic Matter Content ◽  
Oxygen Demand ◽  
Anaerobic Treatment ◽  
Matter Content ◽  
Biological Wastewater Treatment ◽  
Aerobic Treatment ◽  
Total Organic Matter ◽  
Inorganic Substances

Abstract Biological treatment methods are used to remove organic and some inorganic substances from wastewater using the simplest organisms that use these substances for nutrition, breaking them down using cellular processes. The article deals with the aerobic, anaerobic and anoxic stages of biological wastewater treatment. Their differences are explained and the best way to use biological processes is analyzed according to the type of industry/production. At wastewater treatment plants, anaerobic treatment is often used at first to remove a significant part of organic substances from wastewater before sending them for further aerobic treatment. Aerobic treatment is effective for various types of wastewater, especially with lower biochemical oxygen demand (BOD) and chemical oxygen demand (COD). A comparative analysis of wastewater composition from food, oil and gas processing, pharmaceutical and pulp and paper industries was carried out. In the presence of organic compounds, the technology is chosen depending on the total organic matter content or the total COD content, which characterizes the total organic matter in water. A combination of anaerobic and aerobic methods is possible, if a discharge into the sewer system or into water bodies is required. The grounds for the application of biological wastewater treatment of these industries are given.

Removal of Natural Organic Matter by Ultrafiltration: Characterisation, Fouling and Cleaning

1999 ◽  
Vol 40 (9) ◽  
pp. 113-120 ◽  
Author(s):  
A. Maartens ◽  
P. Swart ◽  
E. P. Jacobs
Keyword(s):  
Organic Matter ◽  
Natural Organic Matter ◽  
Membrane Fouling ◽  
Pure Water ◽  
Water Flux ◽  
Cleaning Efficiency ◽  
Commercial Sample ◽  
Membrane Selectivity ◽  
Flux Measurements ◽  
Pure Water Flux

Organic matter in natural brown water as well as humic acids from a commercial sample were characterised by ultraviolet-visible light-spectroscopy and used in ultrafiltration studies. During ultrafiltration the pure-water flux and the operational flux were measured continuously to determine the degree of membrane fouling. The natural organic matter and commercial humic acid concentrations of the feed and permeate solutions were determined spectrophotometrically. These variables were used in conjunction with conventional flux measurements, to determine the colour-removal efficiency of ultrafiltration as well as the degree of foulant adsorption onto the membranes. Fouled membranes were cleaned with alkaline chemical agents normally used to extract natural organic matter from soil samples. The cleaning efficiency and the effect of cleaning solutions on the membrane selectivity were studied.

Anaerobic treatment of low concentration waste water in an inverse fluidized bed reactor

2000 ◽  
Vol 41 (4-5) ◽  
pp. 245-251 ◽  
Author(s):  
P. Castilla ◽  
M. Meraz ◽  
O. Monroy ◽  
A. Noyola
Keyword(s):  
Fluidized Bed ◽  
Removal Efficiency ◽  
Suspended Solids ◽  
Municipal Wastewater ◽  
Specific Activity ◽  
Biomass Concentration ◽  
Fluidized Bed Reactor ◽  
Anaerobic Treatment ◽  
Low Concentration ◽  
Inverse Fluidized Bed

Low concentration synthetic and municipal wastewaters were treated at HRT as short as 3 and 0.6 h respectively in an anaerobic inverse fluidized bed. Both bioreactors showed gas hold up due to the liquid downflow pattern of the prototype. The bioreactor operated at 3 h had a removal efficiency of 83%, specific activity of 4.5 kg CODremoved/kg IVS (d and the gas hold up varied from 23 to 55%. The reactor treating municipal wastewater had a removal efficiency of 44% when operating at 0.6 h, the specific activity was 4.2 kg CODremoved/kg IVS (d and no biogas was detected apparently because an important fraction was dissolved in the liquid phase. The biomass concentration was 13.8 and 1.1 kg IVS/m3 for synthetic and municipal wastewater and the SEM microphotographs showed a bacterial diversity for the first run and only cocci cells for the second run. The system does not remove suspended solids, so a polishing postreatment to improve water quality has to be implemented.

Effect of agitation on the performance of an anaerobic sequencing batch biofilm reactor in the treatment of dairy effluents

2011 ◽  
Vol 63 (5) ◽  
pp. 995-1003 ◽  
Author(s):  
T. Z. Penteado ◽  
R. S. S. Santana ◽  
A. L. B. Dibiazi ◽  
S. C. de Pinho ◽  
R. Ribeiro ◽  
...  
Keyword(s):  
Organic Matter ◽  
Particulate Organic Matter ◽  
Oxygen Demand ◽  
Anaerobic Treatment ◽  
Biofilm Reactor ◽  
Volatile Acid ◽  
Batch Reactors ◽  
Agitation Rate ◽  
Organic Matter Concentration ◽  
Dairy Effluents

Agitation rate is an important parameter in the operation of Anaerobic Sequencing Biofilm Batch Reactors (ASBBRs), and a proper agitation rate guarantees good mixing, improves mass transfer, and enhances the solubility of the particulate organic matter. Dairy effluents have a high amount of particulate organic matter, and their anaerobic digestion presents inhibitory intermediates (e.g., long-chain fatty acids). The importance of studying agitation in such batch systems is clear. The present study aimed to evaluate how agitation frequency influences the anaerobic treatment of dairy effluents. The ASBBR was fed with wastewater from milk pasteurisation process and cheese manufacture with no whey segregation. The organic matter concentration, measured as chemical oxygen demand (COD), was maintained at approximately 8,000 mg/L. The reactor was operated with four agitation frequencies: 500 rpm, 350 rpm, 200 rpm, and no agitation. In terms of COD removal efficiency, similar results were observed for 500 rpm and 350 rpm (around 90%) and for 200 rpm and no agitation (around 80%). Increasing the system’s agitation thus not only improved the global efficiency of organic matter removal but also influenced volatile acid production and consumption and clearly modified this balance in each experimental condition.

scholarly journals Mobile technology-enhanced asset maintenance in an SME

2014 ◽  
Vol 20 (2) ◽  
pp. 163-181 ◽  
Author(s):  
Grzegorz Stefan Bankosz ◽  
John Kerins
Keyword(s):  
Information Management ◽  
Mobile Technology ◽  
User Interaction ◽  
Data Capture ◽  
Prototype System ◽  
Manufacturing Plant ◽  
Design Development ◽  
Food Manufacturing ◽  
Content Type ◽  
Potential Benefits

Purpose – The purpose of this paper is to develop a prototype system to demonstrate the potential benefits of deploying mobile technology to enhance asset maintenance processes in a small food manufacturing plant. Design/methodology/approach – Design, development and deployment of a solution using open-source resources aimed at demonstrating improved asset maintenance functionality to principal stakeholders in a food manufacturing plant. Findings – The development of a prototype system supporting user interaction via a mobile phone demonstrates the potential benefits of more flexible data capture and improved information management which offer clear advantages over the limitations imposed by a stand-alone terminal. Research limitations/implications – The solution was developed as a prototype. In this respect it serves to illustrate system benefits but more work is needed to extend system functionality. Practical implications – Issues concerning data security and questions surrounding a suitable deployment platform would need to be addressed in deploying this technology. Originality/value – The research demonstrates that mobile technology can successfully be utilised to enhance asset maintenance in a small manufacturing plant by improving data capture and information management. These initiatives are likely to be of interest to other SMEs seeking to enhance asset maintenance processes.

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