Is an Effective Recovery of Heavy Metals from Industrial Effluents Feasible?
© Lehrstuhl fĂźr Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (11/2016)
Metallic elements and their compounds represent, depending on their concentration and bioavailability, a potential hazard to the health of humans, animals, plants and other living organisms. Large volumes of water contaminated with heavy metals or radioactive elements are generated e.g. during mining processes or industrial productions. In general, legal limits are low and strict to ensure purifying of wastewater.
© Lehrstuhl fĂźr Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (11/2016)
Metallic elements and their compounds represent, depending on their concentration and bioavailability, a potential hazard to the health of humans, animals, plants and other living organisms. Large volumes of water contaminated with heavy metals or radioactive elements are generated e.g. during mining processes or industrial productions. In general, legal limits are low and strict to ensure purifying of wastewater.
Removal of Nitrate by Autosulfurotrophic Denitrifying Bacteria: Optimization, Kinetics and Thermodynamics Study
© PSP - Parlar Scientific Publications (12/2010)
In order to find an effective way to remove nitratenitrogen (NO3 â-N) in wastewater, the autosulfurotrophic denitrifying bacteria, which could oxidize elemental sulfur and reduce nitrate, was screened from facultative anaerobic sludge. The optimum conditions for denitrification were determined by studying pH, temperature and the initial sodium bicarbonate concentration.
© PSP - Parlar Scientific Publications (12/2010)
In order to find an effective way to remove nitratenitrogen (NO3 â-N) in wastewater, the autosulfurotrophic denitrifying bacteria, which could oxidize elemental sulfur and reduce nitrate, was screened from facultative anaerobic sludge. The optimum conditions for denitrification were determined by studying pH, temperature and the initial sodium bicarbonate concentration.
Batch and Fixed-Bed Adsorption of Actual Dyeing Wastewater on Sludge-Based Adsorbent from Pyrolusite-Catalyzed Pyrolysis
© PSP - Parlar Scientific Publications (12/2010)
The feasibility of application of activated carbon prepared from pyrolusite-augmented sewage sludge was investigated in batch and fixed-bed adsorption systems. An actual dyeing wastewater was chosen as the target pollutant. The results showed that the mineral supplement enhanced the properties of the activated carbon via catalyzing the formation of micro- and meso-pores during pyrolysis.
© PSP - Parlar Scientific Publications (12/2010)
The feasibility of application of activated carbon prepared from pyrolusite-augmented sewage sludge was investigated in batch and fixed-bed adsorption systems. An actual dyeing wastewater was chosen as the target pollutant. The results showed that the mineral supplement enhanced the properties of the activated carbon via catalyzing the formation of micro- and meso-pores during pyrolysis.
Removal of Algogenic Organic Matter by MiexÂŽ Pre-Treatment and its Effect on Fouling in Ultrafiltration
© PSP - Parlar Scientific Publications (12/2010)
Natural organic matter (NOM) fouling continues to be the major barrier to efficient application of ultrafiltration (UF) in drinking water treatment. Algogenic organic matters (AOM), the main contributor to total NOM levels in raw waters characterised by elevated algae levels, is currently the subject of much investigation. In this study, the effect of AOM on fouling of ultrafiltration and the effectiveness of MIEXÂŽ pre-treatment for AOM removal and membrane fouling control was evaluated. The results showed that, the main species of algae in raw water were Chlorella vulgaris, which accounted for 80% of total algae. AOM was predominantly hydrophilic (50% or more) with a low SUVA (1.7Lm-1mg-1).
© PSP - Parlar Scientific Publications (12/2010)
Natural organic matter (NOM) fouling continues to be the major barrier to efficient application of ultrafiltration (UF) in drinking water treatment. Algogenic organic matters (AOM), the main contributor to total NOM levels in raw waters characterised by elevated algae levels, is currently the subject of much investigation. In this study, the effect of AOM on fouling of ultrafiltration and the effectiveness of MIEXÂŽ pre-treatment for AOM removal and membrane fouling control was evaluated. The results showed that, the main species of algae in raw water were Chlorella vulgaris, which accounted for 80% of total algae. AOM was predominantly hydrophilic (50% or more) with a low SUVA (1.7Lm-1mg-1).
Ozone Application as an Alternative Method to the Chemical Treatment Technique for Textile Wastewater
© PSP - Parlar Scientific Publications (12/2010)
In this study, chemical oxidation demand (COD) and color removal efficiencies of a textile industry were tested using chemical and ozone oxidation treatment techniques. The industry uses chemical processes to treat its wastewater, so it needs much time and operation cost. Herein, the applicability of ozone oxidation techniques was discussed as an alternative to the chemical treatment.
© PSP - Parlar Scientific Publications (12/2010)
In this study, chemical oxidation demand (COD) and color removal efficiencies of a textile industry were tested using chemical and ozone oxidation treatment techniques. The industry uses chemical processes to treat its wastewater, so it needs much time and operation cost. Herein, the applicability of ozone oxidation techniques was discussed as an alternative to the chemical treatment.
ZemdrainÂŽ Formwork Liners in Wastewater Treatment Plants
© DIV Deutscher Industrieverlag GmbH / Vulkan-Verlag GmbH (8/2010)
Experts report on the performance of cast reinforced concrete surfaces after ten years of operation
© DIV Deutscher Industrieverlag GmbH / Vulkan-Verlag GmbH (8/2010)
Experts report on the performance of cast reinforced concrete surfaces after ten years of operation
10 years anniversary celebration in China: Constant Waterlevel Sequencing Batch Reactor (CWSBR)
© Deutscher Fachverlag (DFV) (6/2010)
CWSBR âConstant Waterlevel Sequencing Batch Reactorâ is an innovative biological treatment technology for municipal wastewater. The application of the CWSBR technology started in 2000 in order to lower the costs of wastewater treatment plants significantly. After an intensive period of quality assurance by the patent holder âGesellschaft fĂźr Abwasser- und Abfalltechnik mbHâ (G.A.A) in Germany the international acceptance of CWSBR increased rapidly. In China the sole authorized technology holder and promotion representative, Dalian MEC Environmental Technology & Engineering Co., Ltd. (Dalian MECETC) realized the successful implementation of CWSBR in the market and achieved high social and economic benefits.
© Deutscher Fachverlag (DFV) (6/2010)
CWSBR âConstant Waterlevel Sequencing Batch Reactorâ is an innovative biological treatment technology for municipal wastewater. The application of the CWSBR technology started in 2000 in order to lower the costs of wastewater treatment plants significantly. After an intensive period of quality assurance by the patent holder âGesellschaft fĂźr Abwasser- und Abfalltechnik mbHâ (G.A.A) in Germany the international acceptance of CWSBR increased rapidly. In China the sole authorized technology holder and promotion representative, Dalian MEC Environmental Technology & Engineering Co., Ltd. (Dalian MECETC) realized the successful implementation of CWSBR in the market and achieved high social and economic benefits.
An exceptional material: State-of-the-art wastewater treatment
© Deutscher Fachverlag (DFV) (6/2010)
Bioworks Verfahrenstechnik GmbH (Germany), a pioneering specialist in biological wastewater treatment, produces floating micro-bubble aeration systems. Their new â âOxiworksâ aerator required the very best in materials to meet market standards. At the same time, the treatment specialists were keen to team up with a supplier capable of offering exceptional technical expertise. In Simona and its Simona PP-H AlphaPlus, Bioworks found both a reliable partner and a best-in-class product solution.
© Deutscher Fachverlag (DFV) (6/2010)
Bioworks Verfahrenstechnik GmbH (Germany), a pioneering specialist in biological wastewater treatment, produces floating micro-bubble aeration systems. Their new â âOxiworksâ aerator required the very best in materials to meet market standards. At the same time, the treatment specialists were keen to team up with a supplier capable of offering exceptional technical expertise. In Simona and its Simona PP-H AlphaPlus, Bioworks found both a reliable partner and a best-in-class product solution.
Decentralised solutions sought: Small sewage treatment plants offer many options
© Deutscher Fachverlag (DFV) (6/2010)
Small modular plants for water management have become increasingly popular over the last few years. And there are some very good reasons for this trend. They help provide flexible solutions for future challenges such as demographic changes, climate change and diminishing raw materials. Small sewage treatment plants also offer interesting perspectives for Asia.
© Deutscher Fachverlag (DFV) (6/2010)
Small modular plants for water management have become increasingly popular over the last few years. And there are some very good reasons for this trend. They help provide flexible solutions for future challenges such as demographic changes, climate change and diminishing raw materials. Small sewage treatment plants also offer interesting perspectives for Asia.
Spatio-temporal variation in water quality of Malad creek, Mumbai, India using geospatial tools
© Aristotle University of Thessaloniki (6/2009)
Presently Malad creek in west coast of Mumabi, India receives wastewater from non-point pollution sources, open drains and partially treated sewage from Malad and Versova treatment facilities. The objective of study is to assess the spatio - temporal variations of water quality parameters and level of pollution in creek during low and high tides.
© Aristotle University of Thessaloniki (6/2009)
Presently Malad creek in west coast of Mumabi, India receives wastewater from non-point pollution sources, open drains and partially treated sewage from Malad and Versova treatment facilities. The objective of study is to assess the spatio - temporal variations of water quality parameters and level of pollution in creek during low and high tides.
