[雙語翻譯]污水處理外文翻譯--中小型城市污水處理廠污泥處理與管理——新技術方案

1、5000 英文單詞， 英文單詞，27500 英文字符，中文 英文字符，中文 8000 字文獻出處： 文獻出處：Grobelak A, Grosser A, Kacprzak M, et al. Sewage sludge processing and management in small and medium-sized municipal wastewater treatment plant-new technical soluti

2、on[J]. Journal of environmental management, 2019, 234: 90-96.Sewage sludge processing and management in small and medium-sized municipal wastewater treatment plant-new technical solutionAnna Grobelak, Anna Grosser, Ma?go

3、rzata Kacprzak, Tomasz KamizelaAbstractAlthough sewage sludge generated by most large wastewater treatment plants is treated as waste, this ‘waste’ is both a source of energy and nutrients. Moreover, mainly in the small

4、and medium-sized installations of municipal wastewater treatment plants is produced sewage sludge that meets the standards for soil application. Unfortunately, the overly simplified operating systems of small wastewater

5、treatments plants cannot provide the satisfactory content of water in sewage sludge for energy recovery purposes. Therefore, new solutions for sewage sludge treatment are required. The study presents an innovative, energ

6、y effective, wastewater treatment and sewage sludge processing in one operational sequence, with significant energy consumption decrease and autothermal biomass production. Current research contains detailed technical in

7、formation about the novel integrated waste water treatment plant and sewage sludge treatment installation as well as cost analysis in comparison to conventional treatments.The aim of this study was to evaluate the operat

8、ion of the one prototype line for wastewater and sewage sludge treatment and the assessment of the obtained biomass and fertilizer.This new technology is a solution for small and medium-sized municipal wastewater treatme

9、nt plants and is leading to change the conception of wastewater treatment process as a whole and is resolving the management of sewage sludge at the place where it is generated. In described process the sewage sludge is

10、adequately treated by the installation apparatus and can be used in two ways: as a source of pathogen-free compost, or as a biomass and feedstock for simple thermal installation. Obtained sewage sludge can be recycled as

11、 biomass for combustion with the remaining ash acing as a plant nutrient-rich source (soil properties enhancer). Finally, in a modified wastewater treatment process, an odorless and stabilized compost or biomass for ther

12、mal energy recovery can be obtained and utilized directly at the place of origin. This alternative system allows for the systematic (and technological) adjustment of already existing, upgraded and newly-designed wastewat

13、er treatment plants. This new and innovative technology driven by assumptions about the best possible use of the resources and energy, allows for a more sustainable functioning of the treatment plant. The present study p

14、rovides a significant insight into closing carbon, nitrogen, phosphorus, potassium and energy loops in wastewater treatments system.Keywords: Sewage sludge disposal；Small wastewater treatment plants；Compost；Biomass；Renew

15、able energy1. IntroductionSewage sludge is covered by numerous legal acts in the European Union (EU), such as those regarding water protection, soil fertilization, environmental protection and waste management. They are

16、also subject to the Directive of the European Parliament and of the Council on waste of the so-called Waste Framework Directive (EC directive 2008/98/EC). With the existing state of waste management technology, it is imp

17、ossible to avoid the formation of sewage sludge. It is estimated that 13.84 MT/y of dry solids are captured during wastewater treatment in USA (Seiple There are also multifunctional processes to consider. Composting, for

18、 example, will provide stabilization, and at the same time, at temperatures above 55 °C, both hygienisation and drying will occur. The number of possible unit processes is very large and is constantly growing (Otura

19、n and Aaron, 2014). In the research of Gikas (2017) produced biosolids are thermally dried (80% solids) and conveyed to a gasifier through syngas combustion in a co-generation engine. An alternative solution to incinerat

20、ion of sewage sludge is the wet oxidation process (Yoshida et al., 2018), where organic matter (OM) is transformed into carbon dioxide and water emitted into air and into mineral residues. A study conducted by Lombardi e

21、t al. (2017) suggests that replacing common direct sewage sludge-landspreading with incineration instead helps to reduce environmental toxicity posed to humans and ecosystems alike. Thermal disposal of sewage sludge, esp

22、ecially combustion can be energy positive only if the water content of sludge is below about 30%. Currently the bioenergy utilization seems to be the most optimal solution for increasing energy and fossil fuels demand.Th

23、erefore, it is necessary to look for alternative solutions for generation and management of municipal sewage sludge. This work concerns the possibility of the sewage sludge utilization as valuable organic products, as bi

24、omass for renewable energy production in small to mediumsized wastewater treatment plants. The application of described alternative waste water and sewage sludge treatment processes is leading to change the conception of

25、 wastewater treatment process as a whole and is resolving the management of sewage sludge at the place where it is generated. The presented pilot scale Bionor Sludge technology offers such a solution for wastewater treat

26、ment plants with a throughput of up to 1000 m3 per day (pilot scale tested for 250 m3). The sewage sludge generated in this technology's installation apparatus can be disposed in two ways: as a stabilized and hygieni

27、sed compost or as a biomass input for thermal installation integrated directly with the wastewater treatment system. The presented study herein describes an innovative solution in sludge management in a pilot scale waste

28、water treatment plant. The present study provides a significant insight into closing C, N, P, K, energy loops in wastewater treatment system.2. Materials and methods2.1. Description of the innovative wastewater treatment

29、 technology (Bionor Sludge, pilot-testing scale)The innovative wastewater treatment plant (test installation, Fig.1) operates by both principles of a biological and mechanical wastewater treatment plant. The average infl

30、ow of mainly domestic wastewater to the treatment plant is 250 m3 per day. The planned capacity of the wastewater treatment plant is 3300 PE (people equivalent). The first element of this wastewater treatment technology&

31、#39;s sequence is the drum screen. On the drum screen, as of result of drawing, the separation of large fractions of solids contained in the wastewater takes place (Table 1).The transport of screenings consists of the fo

32、llowing steps: a roller conveyor with cleaning brush, rinsing of the sieve with warm and cold, processed water, drum screen is installed in a hermetic enclosure, and a discharge of the screenings into a container is the

33、following by plastic sleeve. Screenings are transported by a screw conveyor to the compaction zone and then directed to discharge into hermetic containers. The screenings are subjected to a disinfection process with lime

34、 and subsequently go into thermo-composting mode.The next element of the mechanical portion of the wastewater treatment plant is the band filter (Salsnes) (Table 2). The separation of wastewater from the suspension occur