Bioscrubbing, an effective and economic solution to odour control at wastewater treatment plants

2000 ◽  
Vol 41 (6) ◽  
pp. 155-164 ◽  
Author(s):  
N. G. Hansen ◽  
K. Rindel
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plants ◽  
Treatment Plant ◽  
Operating Costs ◽  
Cleaning Efficiency ◽  
Sulphur Compounds ◽  
Environment Friendly ◽  
Odour Control ◽  
Space Requirements ◽  
Critical Sections

Based on odour nuisances from the Damhusaaen Wastewater Treatment Plant in Copenhagen, it was decided that the critical sections of the inlet structure to the treatment plant should be covered and enclosed. The ventilation air, 6000m3/h, is cleaned in a bioscrubber process. These installations have reduced the odour in the surroundings of the treatment plant to the extent that it is no longer noticeable. A cleaning efficiency for hydrogen sulphide of >99% and low residual emissions, <0.1 mg/m3 of organic sulphur compounds, are obtained in the bioscrubber. The consumption of the sodium hydroxide for neutralising the sulphuric acid formed is stoichiometric in relation to the amount of sulphur compounds removed. This results in relatively low operating costs corresponding to half to one fourth of the operating costs of a chemical scrubber at normal influent concentrations. In addition, the bioscrubber has proven reliable with only little maintenance and low space requirements. Abioscrubber can thus be considered an environment-friendly and competitive alternative to chemical scrubbers and biofilters.

scholarly journals Benchmarking of large municipal wastewater treatment plants treating over 100,000 PE in Austria

2008 ◽  
Vol 57 (10) ◽  
pp. 1487-1493 ◽  
Author(s):  
S. Lindtner ◽  
H. Schaar ◽  
H. Kroiss
Keyword(s):  
Wastewater Treatment ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Treatment Plant ◽  
Operating Costs ◽  
Municipal Wastewater Treatment ◽  
Design Capacity ◽  
Capital Costs ◽  
Process Indicators ◽  
Benchmarking System

During a six-year period the Austrian Benchmarking System was developed. The main objectives of this benchmarking system are the development of process indicators, identification of best performance and determination of cost reduction potentials. Since 2004 this system is operated via an internet platform and automated to a large extent. Every year twenty to thirty treatment plants use the web-based access to this benchmarking platform. The benchmarking procedure comprises data acquisition, data evaluation including reporting and organised exchange of experience for the treatment plant managers. The process benchmarking method links the real costs with four defined main processes and two support processes. For wastewater treatment plants with a design capacity >100,000 PE these processes are further split up into sub-processes. For each (sub-) process the operating costs are attributed to six cost elements. The specific total yearly costs and the yearly operating costs of all (sub-)processes are related to the measured mean yearly pollution load of the plant expressed in population equivalents (PE110: 110 gCOD/d corresponding to 60 g BOD5/d)). The specific capital costs are related to the design capacity (PE). The paper shows the benchmarking results of 6 Austrian plants with a design capacity >100,000 PE representing approximately 30% of the Austrian municipal wastewater treatment plant capacity.

Automation of a Petroleum Refinery Wastewater Treatment Plant:A Case Study

1989 ◽  
Vol 24 (3) ◽  
pp. 451-462
Author(s):  
Robert J. Shantz ◽  
Virginia B. Erickson
Keyword(s):  
Wastewater Treatment ◽  
Control System ◽  
Wastewater Treatment Plants ◽  
Computer Control ◽  
Treatment Plant ◽  
Oil Refinery ◽  
Operating Costs ◽  
Computer Control System ◽  
Treatment Facilities ◽  
Labor Requirements

Abstract Historically, automation was not considered for wastewater treatment plants because it did not significantly affect operating costs, and manual plant operation was considered acceptable. Despite past practices, the BP Oil Refinery at Marcus Hook, Pennsylvania set a new standard when they began upgrading their wastewater facility in 1985. By automating the plant, they ensured safe, reliable operation with minimum labor requirements, process optimization, and long-term reductions in operating costs. Major design features included: a distributed computer control system with monitoring and supervisory capabilities; high-quality control system instruments; control system components; and redundancy and backup to support operation if a component or power failure occurs. In addition, design control philosophies remained consistent from predesign to startup. This advanced wastewater treatment plant can serve as a model for automation of future industrial treatment facilities.

Odour removal with a trickling filter at a small WWTP strongly influenced by the tourism season

2001 ◽  
Vol 44 (2-3) ◽  
pp. 243-249 ◽  
Author(s):  
L. Patria ◽  
M. Cathelain ◽  
P. Laurens ◽  
J. P. Barbere
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plants ◽  
Treatment Plant ◽  
Control Process ◽  
First Year ◽  
Pollution Load ◽  
Odour Source ◽  
Effective System ◽  
Autotrophic Biomass ◽  
Odour Control

Etaples-Le Touquet's wastewater treatment plant (WWTP) is based on a coastal area of the Artois-Picardie region. The pollution load can vary from 20,000 p.e. to 60,000 p.e. over a weekend or in summer. The Collectivity and the Water Agency decided to cover and ventilate the main odour source points of the plant. The foul air was directed to a 2,500 m3/h inorganic bed biofilter (Alizair(r)) for odour control. An odour monitoring took place during the first year of operation taking into account cold and warm seasons, high and low tourism seasons. The Alizair biofilter appeared an appropriate odour control process for small sized wastewater treatment plants, easy to operate and efficient even in areas where tourism seasons have a great impact on the pollution load arriving at the plant. The neighbourhood did not complain about odours any more and the operator was very confident with such a simple and effective system. The local Authorities and the Water Agency agreed to recommend Alizair biofilters with an autotrophic biomass adapted in the case of an old WWTP that cannot be up graded any more or for large pumping stations and wastewater storage prior treatment.

Odour Emissions and Odour Control at Wastewater Treatment Plants in West Germany

1988 ◽  
Vol 20 (4-5) ◽  
pp. 261-266 ◽  
Author(s):  
F. B. Frechen
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plants ◽  
Treatment Plant ◽  
West Germany ◽  
Air Treatment ◽  
Different Types ◽  
Waste Air ◽  
Local Residents ◽  
Odour Control ◽  
Odour Emissions

Odour emissions caused by wastewater treatment plants can bring serious annoyance to the plant's staff and local residents. A measurement technique is required that corresponds to the human impression of smell. Thus, olfactometry was used to determine the odour strength. Many facts contribute to the formation and release of odorous emissions. Surveys as well as measurement programs indicate that the sludge part of a wastewater treatment plant is the most critical part. Different types of waste air treatment plants are in use in West Germany. Regarding the total amount of waste air to be deodorized, chemical scrubbers play the major role today. Looking at the numbers of plants, bio-filters are most common. Biological waste air treatment systems are of increasing importance in West Germany.

WASTEWATER TREATMENT PLANT OPERATION COSTS

1994 ◽  
Vol 30 (4) ◽  
pp. 7-15 ◽  
Author(s):  
Peter Balmér ◽  
Bengt Mattsson
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plants ◽  
Treatment Plant ◽  
Plant Size ◽  
Operating Costs ◽  
Great Effort ◽  
Local Conditions ◽  
Operation Costs ◽  
Operation And Maintenance ◽  
Per Capita

Operation and maintenance costs have been compiled for 20 wastewater treatment plants in the range of 7 000 to 650 000 population equivalents. Great effort has been made to exclude the effects of local conditions on the costs. Data on energy and chemical consumption and manpower are given as well as the total operating costs and the distribution of manpower, energy, chemical and other costs. The results show that costs for manpower and electricity as well as total costs on a per capita basis decrease with increasing plant size. The variation between individual plants is, however, large even when differences in local conditions are accounted for.

Requirements with respect to on-line analyzers for N and P

1996 ◽  
Vol 33 (1) ◽  
pp. 139-146 ◽  
Author(s):  
S. Schlegel ◽  
P. Baumann
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plants ◽  
Treatment Plant ◽  
Operating Costs ◽  
Phosphorus Compounds ◽  
Individual Treatment ◽  
Measuring Instruments ◽  
Nitrogen And Phosphorus ◽  
Code Of Practice ◽  
On Line

For some years now, measuring instruments have been employed at wastewater treatment plants in Germany to continuously monitor ammonia (NH4), nitrate (NO3) and phosphate (PO4). Altogether, almost 3,000 monitoring units are currently in use at a total of approximately 600 treatment plants of all sizes. In addition to continuously monitoring the treatment plant effluent and individual treatment processes, these allow the adjustment and control of plant units and, thus, a saving in operating costs, particularly with respect to the consumption of energy and chemicals. In addition to characteristic data on the instruments, investment and operating costs play a major role when deciding to purchase measuring instruments of this type. Therefore, the German Technical Wastewater Association's (ATV) working group on the “Automation of Wastewater Treatment Plants” resolved to prepare, within the framework of the ATV rules, a code of practice on “Requirements with respect to On-line Analyzers for Nitrogen and Phosphorus Compounds” (M 269). The purpose of this is to provide planners, operators and public authorities with advice on the design and reliable operation of on-line analyzers and the appurtenant peripheral equipment. The present text describes the essential contents of M 269.

Analysis and balance of phosphorous removal from wastewater at urban wastewater treatment plant

2020 ◽  
Vol 15 (2) ◽  
pp. 142-151
Author(s):  
Peter Lukac ◽  
Lubos Jurik
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Wastewater Treatment Plants ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Phosphorus Recovery ◽  
Anaerobic Sludge ◽  
Biological Phosphorus Removal ◽  
The Mean

Abstract:Phosphorus is a major substance that is needed especially for agricultural production or for the industry. At the same time it is an important component of wastewater. At present, the waste management priority is recycling and this requirement is also transferred to wastewater treatment plants. Substances in wastewater can be recovered and utilized. In Europe (in Germany and Austria already legally binding), access to phosphorus-containing sewage treatment is changing. This paper dealt with the issue of phosphorus on the sewage treatment plant in Nitra. There are several industrial areas in Nitra where record major producers in phosphorus production in sewage. The new wastewater treatment plant is built as a mechanicalbiological wastewater treatment plant with simultaneous nitrification and denitrification, sludge regeneration, an anaerobic zone for biological phosphorus removal at the beginning of the process and chemical phosphorus precipitation. The sludge management is anaerobic sludge stabilization with heating and mechanical dewatering of stabilized sludge and gas management. The aim of the work was to document the phosphorus balance in all parts of the wastewater treatment plant - from the inflow of raw water to the outflow of purified water and the production of excess sludge. Balancing quantities in the wastewater treatment plant treatment processes provide information where efficient phosphorus recovery could be possible. The mean daily value of P tot is approximately 122.3 kg/day of these two sources. The mean daily value of P tot is approximately 122.3 kg/day of these two sources. There are also two outflows - drainage of cleaned water to the recipient - the river Nitra - 9.9 kg Ptot/day and Ptot content in sewage sludge - about 120.3 kg Ptot/day - total 130.2 kg Ptot/day.

Sludge minimization by disintegration at different wastewater treatment plants

2008 ◽  
Vol 3 (1) ◽  
Author(s):  
Luchien Luning ◽  
Paul Roeleveld ◽  
Victor W.M. Claessen
Keyword(s):  
Organic Matter ◽  
Wastewater Treatment ◽  
Anaerobic Digestion ◽  
Sewage Sludge ◽  
New Technologies ◽  
Wastewater Treatment Plants ◽  
Treatment Plant ◽  
Biological Degradation ◽  
Ongoing Research ◽  
Sludge Minimization

In recent years new technologies have been developed to improve the biological degradation of sewage sludge by anaerobic digestion. The paper describes the results of a demonstration of ultrasonic disintegration on the Dutch Wastewater Treatment Plant (WWTP) Land van Cuijk. The effect on the degradation of organic matter is presented, together with the effect on the dewatering characteristics. Recommendations are presented for establishing research conditions in which the effect of sludge disintegration can be determined in a more direct way that is less sensitive to changing conditions in the operation of the WWTP. These recommendations have been implemented in the ongoing research in the Netherlands supported by the National Institute for wastewater research (STOWA).

Planning Replicable Small Flow Wastewater Treatment Facilities in Developing Nations

1993 ◽  
Vol 28 (10) ◽  
pp. 1-8 ◽  
Author(s):  
A. Gaber ◽  
M. Antill ◽  
W. Kimball ◽  
R. Abdel Wahab
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plants ◽  
Local Development ◽  
Treatment Plant ◽  
Development Program ◽  
The United States ◽  
Appropriate Technology ◽  
Funding Agency ◽  
Small Scale ◽  
Technology Choice

The implementation of urban village wastewater treatment plants in developing countries has historically been primarily a function of appropriate technology choice and deciding which of the many needy communities should receive the available funding and priority attention. Usually this process is driven by an outside funding agency who views the planning, design, and construction steps as relatively insignificant milestones in the overall effort required to quickly better a community's sanitary drainage problems. With the exception of very small scale type sanitation projects which have relatively simple replication steps, the development emphasis tends to be on the final treatment plant product with little or no attention specifically focused on community participation and institutionalizing national and local policies and procedures needed for future locally sponsored facilities replication. In contrast to this, the Government of Egypt (GOE) enacted a fresh approach through a Local Development Program with the United States AID program. An overview is presented of the guiding principals of the program which produced the first 24 working wastewater systems including gravity sewers, sewage pumping stations and wastewater treatment plants which were designed and constructed by local entities in Egypt. The wastewater projects cover five different treatment technologies implemented in both delta and desert regions.

scholarly journals Aerial Mapping of Odorous Gases in a Wastewater Treatment Plant Using a Small Drone

2021 ◽  
Vol 13 (9) ◽  
pp. 1757
Author(s):  
Javier Burgués ◽  
María Deseada Esclapez ◽  
Silvia Doñate ◽  
Laura Pastor ◽  
Santiago Marco
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plants ◽  
Treatment Plant ◽  
Principal Component ◽  
Hazardous Air Pollutants ◽  
Sampling System ◽  
Aerial Mapping ◽  
Sensor Signals ◽  
Current Monitoring ◽  
Flexible Tubes

Wastewater treatment plants (WWTPs) are sources of greenhouse gases, hazardous air pollutants and offensive odors. These emissions can have negative repercussions in and around the plant, degrading the quality of life of surrounding neighborhoods, damaging the environment, and reducing employee’s overall job satisfaction. Current monitoring methodologies based on fixed gas detectors and sporadic olfactometric measurements (human panels) do not allow for an accurate spatial representation of such emissions. In this paper we use a small drone equipped with an array of electrochemical and metal oxide (MOX) sensors for mapping odorous gases in a mid-sized WWTP. An innovative sampling system based on two (10 m long) flexible tubes hanging from the drone allowed near-source sampling from a safe distance with negligible influence from the downwash of the drone’s propellers. The proposed platform is very convenient for monitoring hard-to-reach emission sources, such as the plant’s deodorization chimney, which turned out to be responsible for the strongest odor emissions. The geo-localized measurements visualized in the form of a two-dimensional (2D) gas concentration map revealed the main emission hotspots where abatement solutions were needed. A principal component analysis (PCA) of the multivariate sensor signals suggests that the proposed system can also be used to trace which emission source is responsible for a certain measurement.

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