scholarly journals First implementation of a SEMIZENTRAL resource recovery center

2016 ◽  
Vol 6 (4) ◽  
pp. 466-475 ◽  
Author(s):  
J. Tolksdorf ◽  
D. Lu ◽  
P. Cornel
Keyword(s):  
Wastewater Treatment ◽  
Water Reuse ◽  
Treatment Plant ◽  
Resource Recovery ◽  
Resource Efficiency ◽  
Wastewater Sludge ◽  
Energy Potential ◽  
Advantages And Disadvantages ◽  
High Resource ◽  
Service Water

The SEMIZENTRAL approach has been developed for fast growing cities, to meet their challenges regarding the supply of water and the treatment of biowaste and wastewater. Key elements of the SEMIZENTRAL integrated infrastructure approach are high resource efficiency due to urban water reuse and the usage of the energy potential of wastewater/sludge and waste, as well as its system size between central and decentral. In Qingdao (PR China), the SEMIZENTRAL Resource Recovery Center (RRC) has been implemented for the first time worldwide at full scale. The goal of high resource efficiency, which includes generating service water, has a significant influence on the process design of the RRC. Moreover, the influence of the site adaptation of the general SEMIZENTRAL approach to the actual location in Qingdao on emissions to the water body and on the energy balance has been investigated. Through comparisons with a conventional wastewater treatment plant, advantages and disadvantages are evaluated. Due to water reuse, energy can be saved, compared to alternative water resources. The discharged nutrient load decreases considerably. Nevertheless, the effort required for wastewater treatment increases.

scholarly journals Sewer Mining as a Distributed Intervention for Water-Energy-Materials in the Circular Economy Suitable for Dense Urban Environments: A Real World Demonstration in the City of Athens

Water ◽  
2021 ◽  
Vol 13 (19) ◽  
pp. 2764
Author(s):  
Argyro Plevri ◽  
Klio Monokrousou ◽  
Christos Makropoulos ◽  
Christos Lioumis ◽  
Nikolaos Tazes ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Circular Economy ◽  
Water Reuse ◽  
Wastewater Treatment Plants ◽  
Treatment Plant ◽  
Urban Environments ◽  
Treated Wastewater ◽  
Aquifer Recharge ◽  
Treatment Unit ◽  
Plant Nursery

Water reuse and recycling is gaining momentum as a way to improve the circularity of cities, while recognizing the central role of water within a circular economy (CE) context. However, such interventions often depend on the location of wastewater treatment plants and the treatment technologies installed in their premises, while relying on an expensive piped network to ensure that treated wastewater gets transported from the treatment plant to the point of demand. Thus, the penetration level of treated wastewater as a source of non-potable supply in dense urban environments is limited. This paper focuses on the demonstration of a sewer mining (SM) unit as a source of treated wastewater, as part of a larger and more holistic configuration that examines all three ‘streams’ associated with water in CE: water, energy and materials. The application area is the Athens Plant Nursery, in the (water stressed) city of Athens, Greece. SM technology is in fact a mobile wastewater treatment unit in containers able to extract wastewater from local sewers, treat it directly and reuse at the point of demand even in urban environments with limited space. The unit consists of a membrane bioreactor unit (MBR) and a UV disinfection unit and produces high quality reclaimed water for irrigation and also for aquifer recharge during the winter. Furthermore, a short overview of the integrated nutrient and energy recovery subsystem is presented in order to conceptualise the holistic approach and circularity of the whole configuration. The SM technology demonstrates flexibility, scalability and replicability, which are important characteristics for innovation uptake within the emerging CE context and market.

Effects of Water Reuse, Recycling and Resource Recovery on Food Processing Waste Treatment in Thailand

1986 ◽  
Vol 18 (3) ◽  
pp. 23-33 ◽  
Author(s):  
R. J. Frankel ◽  
A. Phongsphetraratana
Keyword(s):  
Food Processing ◽  
Water Conservation ◽  
Water Reuse ◽  
Energy Use ◽  
Waste Treatment ◽  
Treatment Plant ◽  
Resource Recovery ◽  
Raw Material ◽  
Design Parameters ◽  
Treatment Needs

Two food processing industries in Thailand, namely pineapple canning and tuna/sardine canning, were studied over a 10 year period to document effects of water reuse, recycling and resource recovery (both energy and product) on waste treatment needs and actual operations. Changes in terms of water consumed, energy required, waste generated, and costs per ton of raw material processed were calculated. Lower overall annual costs resulted from all water conservation and energy recovery schemes even though stricter pollution control laws were the motivating factor behind the changes. Unit design parameters of water use, energy use and waste load generated per ton of raw material processed are included for both industries to permit extrapolations for future waste treatment plant designs.

scholarly journals Occurrence of bisphenol A in wastewater and wastewater sludge of CUQ treatment plant

2011 ◽  
Vol 1 (1) ◽  
pp. 3 ◽  
Author(s):  
Dipti Prakash Mohapatra ◽  
Satinder Kaur Brar ◽  
Rajeshwar Dayal Tyagi ◽  
Rao Y. Surampalli
Keyword(s):  
Wastewater Treatment ◽  
Bisphenol A ◽  
Wastewater Treatment Plant ◽  
Treatment Plant ◽  
Wastewater Sludge ◽  
Process Stream ◽  
High Concentration ◽  
Endocrine Activity ◽  
Treated Effluent ◽  
Major Interest

The identification and quantification of bisphenol A (BPA) in wastewater (WW) and wastewater sludge (WWS) is of major interest to assess the endocrine activity of treated effluent discharged into the environment. BPA is manufactured in high quantities fro its use in adhesives, powder paints, thermal paper and paper coatings among others. Due to the daily use of these products, high concentration of BPA was observed in WW and WWS. BPA was measured in samples from Urban Community of Quebec wastewater treatment plant located in Quebec (Canada) using LC-MS/MS method. The results showed that BPA was present in significant quantities (0.07 μg L–1 to 1.68 μg L–1 in wastewater and 0.104 μg g–1 to 0.312 μg g–1 in wastewater sludge) in the wastewater treatment plant (WWTP). The treatment plant is efficient (76 %) in removal of pollutant from process stream, however, environmentally significant concentrations of 0.41 μg L–1 were still present in the treated effluent. Rheological study established the partitioning of BPA within the treatment plant. This serves as the base to judge the portion of the process stream requiring more treatment for degradation of BPA and also in selection of different treatment methods. Higher BPA concentration was observed in primary and secondary sludge solids (0.36 and 0.24 μg g–1, respectively) as compared to their liquid counterpart (0.27 and 0.15 μg L–1, respectively) separated by centrifugation. Thus, BPA was present in significant concentrations in the WWTP and mostly partitioned in the solid fraction of sludge (Partition coefficient (Kd) for primary, secondary and mixed sludge was 0.013, 0.015 and 0.012, respectively).

Greywater treatment with biological aerated filter (BAF) for urban water reuse

2010 ◽  
Vol 10 (6) ◽  
pp. 907-914
Author(s):  
A. Meda ◽  
P. Cornel
Keyword(s):  
Fresh Water ◽  
Water Reuse ◽  
Treatment Plant ◽  
Organic Load ◽  
Design Parameters ◽  
Urban Water ◽  
Biological Aerated Filter ◽  
Service Water ◽  
Aerated Filter ◽  
Set Up

Greywater is an excellent resource for service water in intra-urban reuse. By substituting fresh water with appropriately treated greywater, it is possible to save 30–50% of fresh water. In this paper, an up-flow pilot biological aerated filter (BAF) is tested for the treatment of synthetic greywater and the design parameters are determined. An organic load of 8 kg COD/(m3 d) allows to achieving a good effluent quality with regard to COD, suspended solids, and anionic surfactants. By reducing the organic load to 5 kg COD/(m3 d) full nitrification is achieved as well. A process set-up for a full-scale BAF greywater treatment plant is proposed and dimensioned using the parameters from the pilot plant tests. Here, the required specific volume is approx. 3 L/C for the reactor and 16 L/C for the storage tanks. This feature make the BAF a compact process which can be successfully integrated in intra-urban water reuse schemes.

scholarly journals Activated Sludge Microbial Community and Treatment Performance of Wastewater Treatment Plants in Industrial and Municipal Zones

2020 ◽  
Vol 17 (2) ◽  
pp. 436 ◽  
Author(s):  
Yongkui Yang ◽  
Longfei Wang ◽  
Feng Xiang ◽  
Lin Zhao ◽  
Zhi Qiao
Keyword(s):  
Wastewater Treatment ◽  
Microbial Community ◽  
Activated Sludge ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Treatment Plant ◽  
Wastewater Sludge ◽  
Community Diversity ◽  
Nitrogen And Phosphorus ◽  
Metabolic Functions

Controlling wastewater pollution from centralized industrial zones is important for reducing overall water pollution. Microbial community structure and diversity can adversely affect wastewater treatment plant (WWTP) performance and stability. Therefore, we studied microbial structure, diversity, and metabolic functions in WWTPs that treat industrial or municipal wastewater. Sludge microbial community diversity and richness were the lowest for the industrial WWTPs, indicating that industrial influents inhibited bacterial growth. The sludge of industrial WWTP had low Nitrospira populations, indicating that influent composition affected nitrification and denitrification. The sludge of industrial WWTPs had high metabolic functions associated with xenobiotic and amino acid metabolism. Furthermore, bacterial richness was positively correlated with conventional pollutants (e.g., carbon, nitrogen, and phosphorus), but negatively correlated with total dissolved solids. This study was expected to provide a more comprehensive understanding of activated sludge microbial communities in full-scale industrial and municipal WWTPs.

Water reuse in Israel - the Dan Region Project: evaluation of water quality and reliability of plant's operation

2003 ◽  
Vol 3 (4) ◽  
pp. 231-237 ◽  
Author(s):  
N. Icekson-Tal ◽  
O. Avraham ◽  
J. Sack ◽  
H. Cikurel
Keyword(s):  
Water Quality ◽  
Wastewater Treatment ◽  
Water Reuse ◽  
Wastewater Reuse ◽  
Treatment Plant ◽  
Water Quality Monitoring ◽  
Water Shortage ◽  
Soil Aquifer Treatment ◽  
Biofilm Growth ◽  
Reclamation Project

Israel is a semi-arid country with insufficient natural water resources. Wastewater effluent reuse and desalination have become the main source of water to compensate for the future water shortage. Today, between 65 and 70% of wastewater of urban and industrial origin is reused in agriculture after treatment in biological treatment plants around the country. The Dan Region Reclamation Project (Shafdan) is the largest wastewater treatment and reclamation project in Israel. 130 Mm3/yr of reclaimed water is used for unrestricted irrigation after soil aquifer treatment (SAT). Extensive water quality monitoring is performed to keep an efficient and safe wastewater reuse system. After 25 years of operation, the Shafdan deals with the following operational issues on an ongoing basis: Biofouling of the effluent pipelines from the wastewater treatment plant to the SAT, and a lack of capacity in the SAT system. Biofilm growth in the pipelines is controlled by intermittently applying chlorine based compounds at a 10 mg/L dosage for a few hours.

CHOOSING AN EFFICIENI TECHNOLOGY OF WASTEWATER SLUDGE DISPOSAL

2020 ◽  
pp. 117-123
Author(s):  
O.V. YANTSEN ◽  
◽  
N.S. SEVRYUGINA ◽  
V.A. GERASIMOV ◽  
A.P. STOROZHEV
Keyword(s):  
Wastewater Treatment ◽  
Water Resources ◽  
Raw Materials ◽  
Treatment Plant ◽  
Wastewater Sludge ◽  
Practical Implementation ◽  
Optimal Method ◽  
Factors Affecting ◽  
Economic Methods ◽  
Materials Used

The article deals with the problem of efficient use of water resources. Factors affecting wastewater treatment and the problem of waste disposal have been identified. It has been established that economic methods should be coordinated with the environmental state in order to rationally manage water resources. The purpose: to reduce the negative environmental burden on water resources by choosing a rational method for the disposal of wastewater sediment. Studies include an analysis of existing methods of wastewater treatment and disposal of sludge. It has been established that the use of the technology for the most complete processing of sewage sludge,utilization of sludge to obtain raw materials for recycling can significantly reduce operating costs. It is accepted as the optimal method to consider the technology of utilization by glazing the sediment, allowing obtaining a granular fraction of raw materials used in the construction industry. An example of the practical implementation of the technology of glazing dehydrated sit cake is presented by a pilot installation at the Shchelkovsite of the sewer treatment plant, as a result of which the amount of wastewater sediment was reduced by almost 25 times.

Assessing the potential of digitalization by real-time monitoring of bacterial concentration in urban water systems

2020 ◽  
Author(s):  
Nicolas Caradot ◽  
Wolfgang Seis ◽  
Dan Angelescu ◽  
Vaizanne Huynh ◽  
Andreas Hausot ◽  
...  
Keyword(s):  
Water Management ◽  
Water Quality ◽  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Temporal Variability ◽  
Water Reuse ◽  
Treatment Plant ◽  
Alert System ◽  
Bathing Water ◽  
Bathing Water Quality

<div> <p>Digital solutions open up a variety of opportunities for the water sector. Digital water is now seen not as an ‘option’ but as an ‘imperative’ (Sarni et al., 2019) for a more sustainable and secure water management. Many solutions leverage the latest innovations developed across industries and business activities including advanced sensors, data analytics and artificial intelligence. The potential of digitalization might outweigh its associated risk if digital solutions are successfully implemented addressing a series of gaps and barriers such as ICT governance, cybersecurity, data protection, interoperability and capacity building.</p> <p>Within this context, the H2020 innovation project digital-water.city (DWC) aims at boosting the integrated management of waters systems in five major European cities – Berlin, Copenhagen, Milan, Paris and Sofia – by leveraging the potential of data and digital technologies. Goal is to quantify the benefits of a panel of 15 innovative digital solutions and achieve their long-term uptake and successful integration in the existing digital systems and governance processes.</p> <p>One of these promising technology is a new sensor for real-time bacterial measurements, manufactured by the company Fluidion (ALERT System; Angelescu et al., 2019). The device is fully autonomous, remotely controllable, installed in-situ and allows rapid quantification of E.coli and enterococci concentrations.</p> <p>Ensuring microbial safety is one of the key objectives of bathing water management, and it is also a critical aspect for water reuse. The European Bathing Water Directive (BWD) (76/160/EEC, 2006) uses fecal indicator bacteria for quality assessment of marine and inland waters. A major challenge regarding bathing water management is that concentrations of fecal bacteria may show spatial and temporal variability. In urban rivers, discharges from CSO and stormwater may contain high amounts of fecal bacteria and contaminate bathing water quality. Bathing water surveillance in Europe is only based on monthly grab samples and event-scale variability is detected only by chance as pollution events may occur between sampling intervals.</p> <p>The ALERT System is currently tested in Berlin and Paris using side by side laboratory comparison to understand temporal variability and spatial bacterial distribution in the local rivers (Seine, Marne and Spree). In Milan, the system is being deployed to provide early warning of bacterial and toxic contamination linked to water reuse at a major wastewater treatment plant. Preliminary analysis have shown that the device shows metrological capabilities comparable to those of an approved laboratory using MPN microplate techniques and is suitable for bacterial pollutant concentration ranges such as urban streams and wastewater treatment plant.</p> <p>The technology opens up new opportunities for the water sector for a range of applications such as the planning of pollution reduction measures, the continuous monitoring of bathing water quality and the assessment of contamination risk by the reuse of treated wastewater for irrigation. In particular, it is a key innovation to contribute to the objective of Paris city and other local municipalities to provide permanent and safe opportunities for bathing in the Seine river for the 2024 Olympic and Paralympic Games, and beyond.</p> </div>

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