Infrastructure optimisation via MBR retrofit: a design guide

Wastewater management is continually evolving with the development and implementation of new, more efficient technologies. One of these is the Membrane Bioreactor (MBR). Although a relatively new technology in Australia, MBR wastewater treatment has been widely used elsewhere for over 20 years, with thousands of MBRs now in operation worldwide. Over the past 5 years, MBR technology has been enthusiastically embraced in Australia as a potential treatment upgrade option, and via retrofit typically offers two major benefits: (1) more capacity using mostly existing facilities, and (2) very high quality treated effluent. However, infrastructure optimisation via MBR retrofit is not a simple or low-cost solution and there are many factors which should be carefully evaluated before deciding on this method of plant upgrade. The paper reviews a range of design parameters which should be carefully evaluated when considering an MBR retrofit solution. Several actual and conceptual case studies are considered to demonstrate both advantages and disadvantages. Whilst optimising existing facilities and production of high quality water for reuse are powerful drivers, it is suggested that MBRs are perhaps not always the most sustainable Whole-of-Life solution for a wastewater treatment plant upgrade, especially by way of a retrofit.

Download Full-text

Nature-Based Solutions for Wastewater Treatment

10.2166/9781789062267 ◽

2021 ◽

Keyword(s):

Wastewater Treatment ◽

Low Cost ◽

Scientific Evidence ◽

Treatment Plant ◽

Domestic Wastewater ◽

Local Context ◽

Design Parameters ◽

Efficient Treatment ◽

Case Examples ◽

Trade Offs

There are 2.4 billion people without improved sanitation and another 2.1 billion with inadequate sanitation (i.e. wastewater drains directly into surface waters), and despite improvements over the past decades, the unsafe management of fecal waste and wastewater continues to present a major risk to public health and the environment (UN, 2016). There is growing interest in low cost sanitation solutions which harness natural systems. However, it can be difficult for wastewater utility managers to understand under what conditions such nature-based solutions (NBS) might be applicable and how best to combine traditional infrastructure, for example an activated sludge treatment plant, with an NBS such as treatment wetlands. There is increasing scientific evidence that treatment systems with designs inspired by nature are highly efficient treatment technologies. The cost-effective design and implementation of ecosystems in wastewater treatment is something that exists and has the potential to be further promoted globally as both a sustainable and practical solution. This book serves as a compilation of technical references, case examples and guidance for applying nature-based solutions for treatment of domestic wastewater, and enables a wide variety of stakeholders to understand the design parameters, removal efficiencies, costs, co-benefits for both people and nature and trade-offs for consideration in their local context. Examples through case studies are from across the globe and provide practical insights into the variety of potentially applicable solutions. ISBN: 9781789062250 (Paperback) ISBN: 9781789062267 (eBook)

Download Full-text

Planning the optimal solution for wastewater management in rural areas - case study

MATEC Web of Conferences ◽

10.1051/matecconf/201817401035 ◽

2018 ◽

Vol 174 ◽

pp. 01035 ◽

Cited By ~ 2

Author(s):

Joanna Boguniewicz-Zablocka ◽

Iwona Klosok-Bazan ◽

Andrea G. Capodaglio ◽

Joanna Ploskonka

Keyword(s):

Wastewater Treatment ◽

Rural Areas ◽

Wastewater Treatment Plants ◽

Treatment Plant ◽

Optimal Solution ◽

Current Status ◽

Wastewater Management ◽

Collection System ◽

Advantages And Disadvantages

Water management and associated wastewater management is an inseparable element of life and development of modern societies. Collection and treatment of wastewater has a significant impact on the environment and economy, both at the local and global level. It is therefore necessary to proceed to activities that ensure proper wastewater management, especially in rural and low-density areas, where it is necessary to search for optimal solutions with regard to sewage systems, including wastewater treatment plants. One of the solution for wastewater treatment from houses without access to sewerage collection system is the construction of on-site wastewater treatment plants. Construction of on-site wastewater treatment plant poses a number of challenges for municipalities and potential investors and has been discussed by many. Aim of this paper is to draw the current status and perspectives of on-site wastewater treatment systems in Poland, with focus on selected case study from rural areas. The paper presents a way to solve the problem of wastewater management in the municipality of Pietrowice Wielkie using local biological wastewater treatment plants. The article presents technological, technical and economical aspects of the above-mentioned solutions and analysis of the advantages and disadvantages of the system proposed by the municipality.

Download Full-text

New Bonnybrook Wastewater Treatment Plant Treated Effluent Outfall—Design, Contracting, and Construction Overview

Pipelines 2021 ◽

10.1061/9780784483619.026 ◽

2021 ◽

Author(s):

Juan Morales ◽

Darren Finney

Keyword(s):

Wastewater Treatment ◽

Wastewater Treatment Plant ◽

Treatment Plant ◽

Treated Effluent

Download Full-text

An Overview on Major Design Constraints, Impact and Challenges for a Conventional Wastewater Treatment Design

Journal of Environmental Treatment Techniques ◽

10.47277/jett/9(1)16 ◽

2020 ◽

Vol 9 (1) ◽

pp. 7-16

Keyword(s):

Wastewater Treatment ◽

Analytical Calculation ◽

Treatment Plant ◽

Field Application ◽

Design Parameters ◽

Plant Design ◽

Political Commitment ◽

Design Constraints ◽

Technical Requirements ◽

Set Up

The conventional wastewater (WW) treatment plant includes physical, chemical, and biological treatment processes that can protect the receiving water bodies from water pollution. The common design constraints, challenges as well as environmental impact would make the wastewater treatment plant’s (WWTP) construction and operation more complex and demanding tasks. Major project constraints for WW plant design are economic, accessibility, fulfilling technical requirements, institutional set-up, health and environment, personnel capacity, and political commitment etc. Design methodology adopted in the current study included project location, unit selections, the design capacity, design period as well as proximity to the population and layout plan. The present manuscript discussed briefly about effluent quality requirements, design issues, environmental impacts, details, and safety concerns. It also highlighted the necessary flexibility to carry out satisfactorily within the desired range of influent WW characteristics and flows. In the present study, every step of the design was verified with Environmental Regulations and suggested to overcome all constraints while designing WWTPs so that standard operational code for the specific region could be implemented to achieve the best treatment performance. The results obtained from analytical calculation were optimized to achieve the best design parameters for field application. The optimized values also reduce the construction and operation cost during the field application.

Download Full-text

Application of CYYF Whole Process Deodorization in Jizhuangzi Wastewater Treatment Plant

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.777.192 ◽

2013 ◽

Vol 777 ◽

pp. 192-195

Author(s):

Lan Wu ◽

Wen Liang Gao ◽

Bao Yu Liu

Keyword(s):

Wastewater Treatment ◽

Activated Sludge ◽

Wastewater Treatment Plant ◽

Low Cost ◽

Treatment Plant ◽

Simple Process ◽

Whole Process ◽

Geographical Position ◽

Biological Deodorization ◽

Living Area

A new biological deodorization technology which is used in Tianjin Jizhuangzi Sewage Plant was introduced in this paper. The geographical position of Jizhuangzi Wastewater Treatment Plant is special. The plant has been surrounded by the living area. The problem of odor to people has been serious until a new deodorization technology is used. It is a source deodorization technology used special filler through vaccination, induction and catalytic to removed the malodorous sources. A special microbial incubator is used to culture and proliferate effective deodorant microorganisms on activated sludge sewage in the biological pool of the plant and then the sludge containing deodorant microbial reflowed to the wastewater inlet. The malodorous substances in the water are removed through adsorption, cohesion, biotransformation degradation and so on by the deodorant microbial. The case indicates that this technology is effective in practice and good for popularization. And this technology with simple process showed significant effect compared with other deodorant technologies and was more secure and convenient to build and run with low cost.

Download Full-text

Evolution of the Southpest Wastewater Treatment Plant

Water Science & Technology ◽

10.2166/wst.2000.0156 ◽

2000 ◽

Vol 41 (9) ◽

pp. 7-14

Author(s):

A. Jobbágy ◽

B. Literáthy ◽

F. Farkas ◽

Gy. Garai ◽

Gy. Kovács

Keyword(s):

Wastewater Treatment ◽

Activated Sludge ◽

Wastewater Treatment Plant ◽

Phosphorus Removal ◽

Treatment Plant ◽

Low Flow ◽

Nitrate Content ◽

Nitrogen And Phosphorus ◽

Treated Effluent ◽

Processing Wastes

The treated effluent of the Southpest Wastewater Treatment Plant is discharged into a small, low-flow branch of the Danube susceptible to eutrophication. The first, high-load activated sludge system with a hydraulic retention time of 2.5 hrs in the aerated basins, was installed here in 1966. The paper presents the evolution of the technology by illustrating the effects of the different changes carried out since 1991. Reconfiguration of the existing activated sludge basins connected originally in parallel into an arrangement of tanks in series increased the settleability of the sludge as well as the efficiency of COD removal significantly. Introduction of an anaerobic zone preceding the aerated basins facilitated biological excess phosphorus removal with a consequent release in the thickener and digester. Introducing lime addition into the recycled sludge processing wastes significantly improved the performance of the system. However, since there had been no provision built for eliminating the nitrate content of the recycled sludge, efficiency of phosphorus removal proved to be dependent on the eventually occurring nitrification. In order to achieve both an effective nitrogen and phosphorus removal the current technology established in 1999 applies a nitrification and a denitrification filter following the activated sludge unit and uses precipitation for phosphorus removal.

Download Full-text

Indirect Laryngeal Surgery in the Clinical Voice Laboratory: The Renewal of a Lost Art

Ear Nose & Throat Journal ◽

10.1177/014556130007900507 ◽

2000 ◽

Vol 79 (5) ◽

pp. 350-361 ◽

Cited By ~ 2

Author(s):

Norman D. Hogikyan ◽

Melissa Pynnonen

Keyword(s):

Cost Effectiveness ◽

General Anesthesia ◽

Recent Literature ◽

Low Cost ◽

Cost Effective ◽

Topical Anesthesia ◽

High Quality ◽

Advantages And Disadvantages ◽

Laryngeal Surgery ◽

Type Of Surgery

Since the advent of precision instruments and safe techniques for direct laryngoscopic surgery under general anesthesia, indirect laryngeal surgery has become very uncommon. A review of the recent literature finds that few authors advocate indirect surgery under topical anesthesia, and many otolaryngologists dismiss this technique as being either of only historical interest or an idiosyncratic method practiced only by a handful of clinicians. The societal mandate for cost-effective healthcare and the availability of relatively low-cost, high-quality endoscopes and video equipment warrant a renewed and broader interest in this type of surgery. In this article, we review a series of 27 indirect surgical procedures performed under topical anesthesia in the clinical voice laboratory. We discuss the indications, outcomes, advantages, and disadvantages of this surgery, and we present a brief analysis of its cost-effectiveness. We conclude that indirect laryngeal surgery in the clinical voice laboratory is an effective, safe, efficient, and less costly alternative to some procedures routinely performed under general anesthesia.

Download Full-text

Sequencing batch reactor technology: the key to a BP refinery (Bulwer Island) upgraded environmental protection system - a low cost lagoon based retro-fit

Water Science & Technology ◽

10.2166/wst.2001.0155 ◽

2001 ◽

Vol 43 (3) ◽

pp. 339-346 ◽

Cited By ~ 7

Author(s):

N. Hudson ◽

J. Doyle ◽

P. Lant ◽

N. Roach ◽

B. de Bruyn ◽

...

Keyword(s):

Sequencing Batch Reactor ◽

Batch Reactor ◽

Low Cost ◽

Treatment Plant ◽

High Standard ◽

Efficient Treatment ◽

Lagoon System ◽

Cost Constraints ◽

Treated Effluent ◽

Environmental Objectives

BP Refinery (Bulwer Island) Ltd (BP) located on the eastern Australian coast is currently undergoing a major expansion as a part of the Queensland Clean Fuels Project. The associated wastewater treatment plant upgrade will provide a better quality of treated effluent than is currently possible with the existing infrastructure, and which will be of a sufficiently high standard to meet not only the requirements of imposed environmental legislation but also BP's environmental objectives. A number of challenges were faced when considering the upgrade, particularly; cost constraints and limited plot space, highly variable wastewater, toxicity issues, and limited available hydraulic head. Sequencing Batch Reactor (SBR) Technology was chosen for the lagoon upgrade based on the following; SBR technology allowed a retro-fit of the existing earthen lagoon without the need for any additional substantial concrete structures, a dual lagoon system allowed partial treatment of wastewaters during construction, SBRs give substantial process flexibility, SBRs have the ability to easily modify process parameters without any physical modifications, and significant cost benefits. This paper presents the background to this application, an outline of laboratory studies carried out on the wastewater and details the full scale design issues and methods for providing a cost effective, efficient treatment system using the existing lagoon system.

Download Full-text

Development of a coliforms monitoring system using an enzymatic fluorescence method

Water Science & Technology ◽

10.2166/wst.2006.156 ◽

2006 ◽

Vol 53 (4-5) ◽

pp. 523-532 ◽

Cited By ~ 6

Author(s):

A. Morikawa ◽

I. Hirashiki ◽

S. Furukawa

Keyword(s):

Wastewater Treatment ◽

Monitoring System ◽

Fluorescence Intensity ◽

Wastewater Treatment Plant ◽

Treatment Plant ◽

Automatic Measurement ◽

Fluorescence Method ◽

Treated Effluent ◽

Increase Rate ◽

Rapid Monitoring

A coliforms monitoring system in treated effluent of a wastewater treatment plant has been developed. In order to achieve rapid monitoring within 1 hour, an enzymatic fluorescence method without a culturing process was introduced to this system. It converts the increase rate of fluorescence intensity as enzymatic activity into the number of coliforms instead of converting fluorescence intensity itself. A flow injection analysis is used in this system for automatic measurement. Moreover, it is equipped with the pre-filtering unit to remove the interfering substances in the suspended solids causing deterioration in measurement precision. The good relationship (correlation coefficient of 0.90) between the obtained values using this system and the analysed values using the conventional direct counting method was observed in a test at an existing wastewater treatment plant.

Download Full-text