ozonation Articles
-
Enhanced treatment of secondary municipal wastewater effluent: comparing (biological) filtration and ozonation in view of micropollutant removal, unselective effluent toxicity, and the potential for real-time control
Ozonation and three (biological) filtration techniques (trickling filtration (TF), slow sand filtration (SSF) and biological activated carbon (BAC) filtration) have been evaluated in different combinations as tertiary treatment for municipal wastewater effluent. The removal of 18 multi-class pharmaceuticals, as model trace organic contaminants (TrOCs), has been studied. (Biological) activated ...
-
Removal of heavy metals in an abandoned mine drainage via ozone oxidation: a pilot-scale operation
The objective of this study was to evaluate the ozone oxidation of dissolved heavy metals in an abandoned mine drainage (AMD) by conducting a pilot-scale operation at two different ozone doses of 7.5 and 24.0 g O3/h into an ozone reactor. A portion of the abandoned mine drainage near the Jungam Mine in Samchuck, Korea was pumped into this pilot-scale plant and used as an influent for the ozone ...
-
RO filtration of biologically treated textile and dyeing effluents using ozonation as a pre-treatment
Bench-scale experiments were conducted to investigate the application of ozonation pre-treatment for biologically treated textile and dyeing wastewater to improve performance of the RO process. Based on ozonation experiments, four specific ozone consumptions (SOC), 0, 0.3, 0.6, 4.0 mg O3/mg DOC0 were chosen for study of the effects of ozonation on the reverse osmosis (RO) process. Membrane flux ...
-
Removal of heavy metals in an abandoned mine drainage via ozone oxidation: a pilot-scale operation
The objective of this study was to evaluate the ozone oxidation of dissolved heavy metals in an abandoned mine drainage (AMD) by conducting a pilot-scale operation at two different ozone doses of 7.5 and 24.0 g O3/h into an ozone reactor. A portion of the abandoned mine drainage near the Jungam Mine in Samchuck, Korea was pumped into this pilot-scale plant and used as an influent for the ozone ...
-
Ozone water treatment FAQs
1. What is ozone water treatment, and how does it work? Ozone water treatment purifies and disinfects water using ozone gas (O3) generated on-site using specialized ozone generators. Ozone consists of three oxygen atoms and acts as a powerful oxidizing agent. When Ozone is injected into the water, it reacts with contaminants through chemical oxidation. This reaction effectively neutralizes ...
-
Excess propagation and disinfection control of Copepod in an ozone-granular activated carbon filter in southern China
The reasons for the excess propagation of Copepod in an ozone-granular activated carbon filter were investigated and batch experiments were conducted to analyze the influences of CT value, pH and organic matter on the efficiency of disinfection of Copepod using chlorine and chloramines. The experimental results revealed that Copepod accounted for 70% of the zooplankton in the sand filter effluent ...
-
Oxidative degradation of COD in Petrochemical facility using Ozone-based advanced oxidation
The aim of this study was to investigate the use of ozone-based advanced oxidation processes for the oxidative destruction of COD in a petrochemical facility. Several AOP experiments were carried out in order to select and optimise the successful treatment option. A LABO3-AOP pilot unit was used where filtered wastewater (COD 1250 ppm) was circulated throughout the AOP reactor and ozone & ...
-
Sewage Water - Nan Shui Municipal Sewage Water Purification Project
Project Introduction The designed treatment capacity is 230000 m3 sewage per day. 20% is domestic sewage and 80% is industrial sewage. Biochemical process adopts A/ O treatment process. After membrane filtration, Ozone Capacityis added for disinfection, decolorization and degrade COD. Treatment Capacity: 230,000 t/d Influent Quality Index (COD): 40-50mg/L Effluent Quality Index (COD): 20mg/L ...
-
Treatment of waste thermal waters by ozonation and nanofiltraton
After their use for heating, e.g. in greenhouses, waste thermal waters may cause environmental problems due to their high contents of ions, and in some cases organic matter (associated with an oxygen demand) or toxic compounds. The aims of this work were to decrease the high organic content of waste thermal water by a combination of ozone treatment and membrane separation, and to investigate ...
-
Combination of microwave demulsification, ozone oxidation and biological aerated filter for advanced treatment of oilfield wastewater with low biodegradability
In this study, a combination process was developed in laboratory-scale including microwave demulsification, ozonation, and biological aerated filter (BAF) in series for the purpose of removing pollutants in oilfield wastewater with high microtoxicity. The microwave demulsification treatment removed 63.4% of oil. The ozonation treatment removed 79.3% of petroleum sulfonate, resulting in a ...
-
Ozone is Not Just for Residential Potable Water Treatment
It has been over 170 years since the d iscovery of the ozone (O3) molecule. Since that time, scientists and engineers have been testing and evaluating ways to use ozone in many different processes, from water and air treatment to surface and food sanitation. The evolution was somewhat slow in the early days, taking nearly 50 years before Europeans found, in 1886, that ozone could be used for ...
-
Fabrication of catalytic ceramic membranes for water filtration
The paper describes the use of the layer-by-layer technique to coat ceramic membranes with iron and manganese oxide nanoparticles. The coatings are thin (Escherichia coli bacteria.Keywords: ceramic membranes, fouling, membrane filtration, ozone, ...
-
Ozone for Protein Skimmers
How a Protein Skimmer work. As part of the life support system (LSS), the Protein Skimmer provides safe, high-quality water, maintaining stable conditions for aquariums, live seafood holdings, and aquaculture operations. The purpose of protein skimmers or foam fractionators is to remove fine solids and dissolved proteins from water. Protein skimmers remove dissolved particles from a wastewater ...
-
In Search of Ideal Groundwater Treatment
As surface water supplies become increasingly polluted and difficult to treat, the use of groundwater continues to increase. Every day, more than 77 billion gal of water are withdrawn from aquifers for a variety of uses including human consumption. Worldwide, groundwater makes up 95% of available freshwater, and nearly half of the U.S. population receives all or part of its drinking water from ...
-
Textile Dyeing Brazil Waste Water Treatment Treatability Jar Test
Textile Dyeing Brazil Textile Dye Wastewater Jar Test This facility dyes material and this is a sample of their red dye wastewater. The pH was 10.46 and Floccin 1108 was used at a dosage of 2 grams/1,000 ml (16.7 lbs or 7.6 kg). The treated pH was 6.7. The water was then filtered followed by ozonation to remove the rest of the color. Click Here to Download pdf of Case Study... ...
-
Membrane filtration and sonication for industrial wastewater reuse
This paper presents an experimental study aimed at estimating the efficiency of the innovative process of ultrafiltration (UF) combined with sonication (Son.) for the refinement of treated effluent to be reused in wet textile processes. Such a novel approach, which has not yet been employed on a full industrial scale, has been experienced at pilot scale on the secondary effluent of the ...
-
Behaviour of brominated and chlorinated flame retardants during drinking water treatment
Flame retardants are chemicals that are added to plastic materials in order to prevent them from catching fire and to slow down the burning process. Due to the widespread occurrence of flame retardants in the environment, it can be expected that especially the more hydrophilic compounds already contaminate raw water resources of water utilities. In this paper results of laboratory-scale ...
-
Applications of porous titanium
With its unique properties, porous titanium can be widely used in the pharmaceutical industry, water treatment industry, food industry, bioengineering, chemical industry, petrochemical, metallurgical industry and gas purification. It is a new material with broad development prospects. Typical uses include: - In the infusion of the pharmaceutical industry, small injections, eye drops, ...
-
Assessment of the best available wastewater management techniques for a textile mill: cost and benefit analysis
In the present study, several water recovery and end-of-pipe wastewater treatment alternatives were evaluated towards the evaluation of Best Available Techniques (BATs) for the management of wastewaters from a denim textile mill in accordance with the European Union's Integrated Pollution Prevention and Control (IPPC) Directive. For this purpose, an assessment that translates the key ...
-
Characterization of bacterial isolates from water reclamation systems on the basis of substrate utilization patterns and regrowth potential in reclaimed water
Microbial regrowth causes problems during water reuse. Comprehensive understanding of the microorganisms that can regrow in reclaimed water and their substrate requirements are necessary. In this study, potential regrowth organisms were isolated from seven water reclamation plants in Japan. Based on 16S rDNA analysis, the isolates were grouped into 34 operational taxonomic units, belonging to ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you