Experiences gained in the operation of anaerobic treatment plants in Germany

1994 ◽  
Vol 30 (12) ◽  
pp. 415-424 ◽  
Author(s):  
U. Austermann-Haun ◽  
C.F. Seyfried
Keyword(s):  
Industrial Wastewater ◽  
Municipal Wastewater ◽  
Treatment Plant ◽  
Ammonium Phosphate ◽  
Solid Material ◽  
Anaerobic Treatment ◽  
Municipal Wastewater Treatment ◽  
Magnesium Ammonium Phosphate ◽  
Magnesium Ammonium ◽  
The University

In the western part of Germany there are 77 full scale anaerobic treatment plants treating industrial wastewater. The ISAH (Institut für Siedlungswasserwirtschaft und Abfalltechnik at the University of Hannover) is or was involved in the investigations, the design and/or operation of 14 of these plants. Some industries (sugar beet, starch, pectin, brewery, vegetable) with their special problems with treating their wastewater anaerobically are described. Experiences of how to handle high nitrate concentrations, to treat a mixture of several industrial wastewaters, to prevent or handle lime, magnesium ammonium phosphate (MAP) or aluminium precipitations are reported. The first municipal wastewater treatment plant combined with a separate anaerobic stage to treat a wastewater mixture of several small factories is described. Something very special about this plant is the construction of the acidification tank. Using the “teapot effect” to enrich the solid material in the centre of the bottom, the solids can be taken from the bottom of the tank and pumped to the municipal sludge digester.

Full scale experiences with anaerobic pre-treatment of wastewater in the food and beverage industry in Germany

1997 ◽  
Vol 36 (2-3) ◽  
pp. 321-328 ◽  
Author(s):  
Ute Austermann-Haun ◽  
Carl Franz Seyfried ◽  
Karl-Heinz Rosenwinkel
Keyword(s):  
Wastewater Treatment ◽  
Industrial Wastewater ◽  
Municipal Wastewater ◽  
Treatment Plant ◽  
Ammonium Phosphate ◽  
Solid Material ◽  
Anaerobic Treatment ◽  
Full Scale ◽  
Municipal Wastewater Treatment ◽  
Magnesium Ammonium Phosphate

In Germany, there are currently 106 full-scale anaerobic treatment plants treating industrial wastewater. This paper describes the operational experiences of several industries (beet sugar, starch, pectin, brewery, distillery, vegetable) which undertake anaerobic wastewater treatment, with particular emphasis on specific wastewater problems and their solutions. Also presented are experiences of the handling of high nitrate concentrations, with the treatment of mixtures of industrial wastewater from different origins, with the chance to prevent the emergence of lime, magnesium ammonium phosphate (MAP) or aluminium precipitation. This paper deals with the first municipal wastewater treatment plant combined with a separate anaerobic stage to treat a wastewater mixture of several small factories. One particular asset of this plant is the construction of the acidification tank: using the “teapot effect” to enrich the solid material in the centre of the bottom, the solids can be taken from the bottom of the tank and pumped to the municipal sludge digester.

Full scale experiences with anaerobic/aerobic treatment plants in the food and beverage industry

1999 ◽  
Vol 40 (1) ◽  
pp. 305-312 ◽  
Author(s):  
U. Austermann-Haun ◽  
H. Meyer ◽  
C. F. Seyfried ◽  
K.-H. Rosenwinkel
Keyword(s):  
Wastewater Treatment ◽  
Industrial Wastewater ◽  
Municipal Wastewater ◽  
Treatment Plant ◽  
Ammonium Phosphate ◽  
Anaerobic Treatment ◽  
Full Scale ◽  
Municipal Wastewater Treatment ◽  
Potato Processing ◽  
Magnesium Ammonium Phosphate

In Germany, there are currently 125 full-scale anaerobic treatment plants treating industrial wastewater. This paper describes the operational experiences of several industries (beet sugar, starch, pectin brewery, distillery, vegetable, potato processing) which undertake anaerobic wastewater treatment, with particular emphasis on specific wastewater problems and their solutions. Also presented are experiences with the handling of high nitrate concentrations, with the treatment of mixtures of industrial wastewater from different origins, with the chance to prevent the emergence of lime, magnesium ammonium phosphate (MAP) or aluminium precipitation. This paper deals as well with the first EGSB reactor (Expanded Granular Sludge Bed) at a German potato processing factory as well as the first municipal wastewater treatment plant combined with a separate anaerobic stage to treat a wastewater mixture from several small factories.

Resource recovery from excess sludge by subcritical water combined with magnesium ammonium phosphate process

2006 ◽  
Vol 54 (9) ◽  
pp. 81-86 ◽  
Author(s):  
M. Arakane ◽  
T. Imai ◽  
S. Murakami ◽  
M. Takeuchi ◽  
M. Ukita ◽  
...  
Keyword(s):  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Subcritical Water ◽  
New Technology ◽  
Ammonium Phosphate ◽  
Municipal Wastewater Treatment ◽  
Excess Sludge ◽  
Magnesium Ammonium Phosphate ◽  
Magnesium Ammonium ◽  
Municipal Wastewater Treatment Plants

The amount of excess sludge produced in municipal wastewater treatment plants in Japan is increasing every year as the urban population increases. Phosphorus in excess sludge could be a potential phosphorus resource since at present, phosphate rock is being exhausted all over the world. Every year, Japan imports large quantities of phosphorus from abroad but much is discharged as excess sludge. Therefore, the solubilization process, one method of recovering phosphorus from sludge, could be a promising solution. In this study, a subcritical water process, a new technology that solubilizes sludge under subcritical conditions, was applied before the phosphorus in sludge was recovered with the magnesium ammonium phosphate (MAP) process. As a result, the solubilization rate of excess sludge achieved approximately 80% and about 94–97% of the phosphorus could be recovered.

scholarly journals Intergrated Water Management in the Wood Manufacturing Industry

2017 ◽  
pp. 305-313
Author(s):  
William Hogland ◽  
Marcia Marques
Keyword(s):  
Small Businesses ◽  
Industrial Wastewater ◽  
Manufacturing Industry ◽  
Municipal Wastewater ◽  
Waste Water Treatment ◽  
Treatment Plant ◽  
Medium Size ◽  
Wastewater Management ◽  
Municipal Wastewater Treatment ◽  
Catchment Areas

Industrial wastewater management is still neglected in a dominating part of the companies in Sweden and it is not considered as a threat to health of man and environment. The Environmental Science  &Engineering Research Group (ESERG) at LNU has under financial support of KK-foundation and large/medium-size companies in Southern Sweden been studied. Even though the problem has been studied for half a century there is knowledge missing and the stormwater is still a growing problem. Every time rain falls, it washes off oils, microorganisms, litter, sediments, fertilizers, and foreign chemicals from streets, parking lots, lawns, dumpster pads, metal roofs as well from landfill, industrial and harbour sites. Industrial facilities with large impervious surfaces for different types of handling of materials are generating stormwater effluents of different qualities which vary during different time periods and same stands for process water generated of a variety of volumes and often of high pollutant concentrations. In some catchment areas, industrial and small business activities can release a significant portion of some pollutants that ends up directly into receiving waters but also at the municipal wastewater treatment plant. Small businesses and enterprises do not pay attention to routine operations and neither have they had the economic resources to implement preventive measures, treatment facilities or to employ expertise on their particular environmental issues. The project “Development of an Integrated Approach for Industrial Wastewater and Stormwater Management in the Wood Industry Sector” has generated new knowledge about industrial waste water treatment that will be presented at the Linnaeus Ecotech 10 international conference.

scholarly journals Characterisation of Microplastics from the Effluent of a Municipal Wastewater Treatment Plant and from its Natural Receptor

2022 ◽  
Vol 58 (4) ◽  
pp. 47-54
Author(s):  
Gheorghe Batrinescu ◽  
Ioana-Alexandra Ionescu ◽  
Roxana-Elena Scutariu ◽  
Bogdan Chiricuta ◽  
Ionut Cristian Surupaceanu
Keyword(s):  
Water Samples ◽  
Municipal Wastewater ◽  
Treatment Plant ◽  
Solid Material ◽  
Municipal Wastewater Treatment ◽  
Average Pore ◽  
Cellulose Esters ◽  
Discharge Point ◽  
Microfiltration Membranes ◽  
Effluent Discharge

Results obtained from the characterization of three water samples (one representing the effluent of a municipal treatment plant and the two others representing surface water from the Jiu River/Romania, upstream and downstream of the effluent discharge point) are presented in this study in terms of microplastic content. The water samples were processed by successively passing them through a series of filters with the following dimensions: 5 mm, 0.5 mm (500 im), 0.1 mm (100 im) and then through some microfiltration membranes (MF) type EZ-Pak Membrane Filters (Merk-Millipore) made of a mixture of cellulose esters, with an average pore diameter of 0.45�m. In order to highlight the microplastics in the water samples, their analysis was performed as well as the solid material retained on the microfiltration membranes, by scanning electron microscopy (SEM) using a SEM Quanta FEG 250/Thermo Fischer Scientific. The results obtained highlighted the existence of microplastics in all the analyzed samples, in the known forms presented in the specialized literature: irregular planes, fibers and spheres. Their dimensions are variable, ranging between 3.2 �m and 119.5 �m for irregular plane microplastics and between 3 �m and 15 �m for spherical microplastics. The dimensions of microplastics in the form of fibers are also in the range of tens of �m and cannot be established exactly because in most cases they appear in the form of conglomerates. The treatment plant�s microplastic effluents content led to the modification of the physical-chemical indicators of the water in their natural receptor. Thus, the content of organic matter and total suspended matter in the downstream water compared to the effluent discharge point is higher than in the upstream water. The analysis of microplastics by SEM allows only their highlighting and their geometry, being a first step in the study of the pollution induced by such materials.

scholarly journals The use of constructed wetlands for the treatment of industrial wastewater

2017 ◽  
Vol 34 (1) ◽  
pp. 233-240 ◽  
Author(s):  
Katarzyna Skrzypiecbcef ◽  
Magdalena H. Gajewskaad
Keyword(s):  
Constructed Wetlands ◽  
Industrial Wastewater ◽  
Municipal Wastewater ◽  
Treatment Plant ◽  
Pilot Scale ◽  
Municipal Wastewater Treatment ◽  
Treatment Wetland ◽  
Oil Processing ◽  
Pollutants Removal ◽  
Pre Treatment

Abstract Constructed wetlands are characterized by specific conditions enabling simultaneous various physical and biochemical processes. This is the result of specific environment for the growth of microorganisms and hydrophytes (aquatic and semiaquatic plants) which are capable of living in aerobic, anaerobic and facultative anaerobic conditions. Their interaction contributes to the intensification of oxidation and reduction responsible for the removal and retention of pollutants. These processes are supported by sorption, sedimentation and assimilation. Thanks to these advantages, treatment wetland systems have been used in communal management for over 50 years. In recent years, thanks to its advantages, low operational costs and high removal efficiency, there is growing interest in the use of constructed wetlands for the treatment or pre-treatment of various types of industrial wastewater. The study analyzes current use of these facilities for the treatment of industrial wastewater in the world. The conditions of use and efficiency of pollutants removal from readily and slowly biodegradable wastewater, with special emphasis on specific and characteristic pollutants of particular industries were presented. The use of subsurface horizontal flow beds for the treatment of industrial wastewater, among others from crude oil processing, paper production, food industry including wineries and distillery, olive oil production and coffee processing was described. In Poland constructed wetlands are used for the treatment of sewage and sludge from milk processing in pilot scale or for dewatering of sewage sludge produced in municipal wastewater treatment plant treating domestic sewage with approximately 40% share of wastewater from dairy and fish industry. In all cases, constructed wetlands provided an appropriate level of treatment and in addition the so-called ecosystem service.

scholarly journals Odour measurement in wastewater treatment plant using both European and Japanese standardized methods: correlation and comparison study

2016 ◽  
Vol 18 (4) ◽  
pp. 728-733 ◽  
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Treatment Plant ◽  
International Standards ◽  
Municipal Wastewater Treatment ◽  
Odour Concentration ◽  
High Concentrations ◽  
The University

<p>Odours discharged from wastewater treatment plants generally cause severe damage to locals. When facility odors affect air quality and cause citizen complaints, an investigation of those odours may require using standardized scientific methods. Odour intensity is one of the main odour characterization parameter, and represents an important sensory indicator of environmental odours.</p> <p>Presently, different international standards have been developed for the measurement of odours. Main consolidated methods are the measurement of odour index assessed by panelists, standardized in Japan and developed there more than 40 years ago; and the measured of odour concentration by dynamic olfactometer according to European standard EN13725:2003.</p> <p>In this study odour samples were collected on a municipal wastewater treatment plant to investigate the relationship between odour index assessed by Japanese standard methods and odour concentration measured with dynamic olfactometry. A monthly sampling and relative odour measurement were carried out for consecutive 8 months at the Laboratory of the Sanitary Environmental Engineering Division (SEED) at the University of Salerno (Italy).</p> <p>Results show a strong linear correlation between the two investigated odour measurement methods, in the case of the measurement of high concentrations. While at lower odour concentrations were observed a difference between the two methods.</p>

Cadmium Balance and Restoration Strategy for a River Basin

1984 ◽  
Vol 16 (5-7) ◽  
pp. 315-325 ◽  
Author(s):  
K R Imhoff ◽  
P Koppe ◽  
D R Albrecht
Keyword(s):  
Drinking Water ◽  
Wastewater Treatment ◽  
River Basin ◽  
Control Strategy ◽  
Industrial Wastewater ◽  
Municipal Wastewater ◽  
Treatment Plant ◽  
Municipal Wastewater Treatment ◽  
Wastewater Discharge ◽  
Positive Results

Induced by stringent standards for surface and drinking water, a cadmium balance for the Ruhr river basin has been calculated. This balance indicates the dominating impact of industrial wastewater discharge while the cadmium load of other sources is comparatively small. In order to reduce cadmium concentrations in river water and in sewage sludges and to avoid disturbances in municipal wastewater treatment plant operation, a control strategy has been developed to identify discharges under cover of darkness and to consult the particular industries. First positive results are dealt with.

Phosphorus recovery using a crystallization process for Sewage Treatment Plant

2011 ◽  
Vol 6 (4) ◽  
Author(s):  
Kazuaki Shimamura ◽  
Tateki Kurosawa
Keyword(s):  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Ammonium Phosphate ◽  
Recovery Process ◽  
Phosphorus Recovery ◽  
Phosphorus Concentration ◽  
Magnesium Ammonium Phosphate ◽  
Magnesium Ammonium ◽  
Verification Test

A novel phosphorus recovery process enabling an effective reuse of recovered phosphorus as a resource has been developed. Three processes, which match the characteristics (sewage component, concentration and flow rate, etc.) of the waste water or the sludge generated form sewage treatment, are introduced here. Verification tests carried out using a crystallization of magnesium ammonium phosphate revealed a phosphorus crystallization exceeding 85%. Moreover, these tests show that the recovered phosphorus can be reused as a fertilizer. Another verification test carried out using a crystallization of hydroxylapatite revealed that the phosphorus concentration is reduced to a few milligrams per liter. In addition it is found that the recovered hydroxylapatite can be reused as a phosphorus ore. Each of the three processes is revealed to contribute to prevention of water contamination, as well as the recovery of phosphorus as a resource.

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