scholarly journals Hydrologic System Protection by Decentralized Wastewater Treatment Technologies in Jordan

2019 ◽  
Vol 3 (1) ◽  
pp. 19-27
Author(s):  
Naser Almanaseer
Keyword(s):  
Wastewater Treatment ◽  
Pilot Scale ◽  
Jordan Valley ◽  
Experimental Site ◽  
E Coli ◽  
System Protection ◽  
Decentralized Wastewater Treatment ◽  
Hydrologic System ◽  
Treatment Technologies ◽  
Removal Efficiencies

The nine different technologies are constructed at the pilot scale in one experimental site at Al-Balqa Applied University and use the same wastewater characteristics as the inlet. Monthly samples were collected from the inlet and outlet of nine different decentralized wastewater treatment technologies for three years (June 2016-June 2019). The samples were analyzed for physical, chemical, and biological parameters including TSS, Turbidity, pH, COD, DO, NH4, NO3, TN, BOD, and E. coli. Removal efficiencies for the nine technologies are obtained for COD, BOD, TN, and TSS to be above 95%. NH4 the removal efficiencies for the nine technologies vary and found to be in the range of 27 to 76% while for the E. coli in the range of 65 to 95%. Further, data on energy consumption were collected for each technology and found for the nine investigated technologies in the range of 0.03 to 0.30 Jordan Dinars per treated cubic meter. The investigated technologies were evaluated, and the best options were endorsed. It is concluded that the adaptation of decentralized wastewater treatment will certainly help protect the hydrologic system in Jordan especially in the high lands where significant groundwater recharge occurs and a considerable amount of surface water flows towards Jordan Valley and collection dams.

A pilot scale study of a sequencing batch reactor treating municipal wastewater operated via the UP-PND process

2008 ◽  
Vol 58 (2) ◽  
pp. 435-438 ◽  
Author(s):  
M. Kornaros ◽  
C. Marazioti ◽  
G. Lyberatos
Keyword(s):  
Wastewater Treatment ◽  
Municipal Wastewater ◽  
Batch Reactor ◽  
Treatment Plant ◽  
Pilot Scale ◽  
Treated Wastewater ◽  
Synthetic Wastewater ◽  
Second Step ◽  
Decentralized Wastewater Treatment ◽  
Real Wastewater

SBRs are usually preferred as small and decentralized wastewater treatment systems. We have demonstrated previously that using a frequent enough switching between aerobic and anoxic conditions and a specific to the treated wastewater aerobic to anoxic phase ratio, it is possible to by-pass the second step of nitrification (i.e. conversion of nitrite to nitrate nitrogen). This innovative process for nitrate by-pass has been branded as UP-PND (University of Patras-Partial Nitrification Denitrification) (WO 2006/129132). The proved methodology was successfully transferred from a lab-scale SBR reactor treating synthetic wastewater to a pilot-scale SBR system treating real wastewater. In this work we present the results from the operation of this pilot-scale SBR, constructed in the Wastewater Treatment Plant of Patras (Greece), using 6-hour, 8-hour and 12-hour cycles. It is demonstrated that three pairs of aerobic/anoxic phases with a relative duration of 1:2 (8-hour cycle) and 2:3 (12-hour cycle) secures the desired by-pass of nitrate production.

Evaluation of sanitation and wastewater treatment technologies: case studies from India

2013 ◽  
Vol 3 (1) ◽  
pp. 1-11 ◽  
Author(s):  
M. Starkl ◽  
T. A. Stenström ◽  
E. Roma ◽  
M. Phansalkar ◽  
R. K. Srinivasan
Keyword(s):  
Wastewater Treatment ◽  
High Risk ◽  
Case Studies ◽  
Initial Assessment ◽  
Cultural Economic ◽  
Septic Tanks ◽  
Decentralized Wastewater Treatment ◽  
Treatment Technologies ◽  
Sanitation Systems ◽  
Wastewater Treatment Systems

This paper reports about the results of an evaluation of selected sanitation systems in India. The following sanitation systems were evaluated: septic tanks, communal Ecosan systems, biogas toilets, solid immobilized biofilters, multiple stage filtration and decentralized wastewater treatment systems (DEWATS). The evaluation has been based on an initial assessment looking at whether the systems comply with their intended benefits, and more in depth evaluations on cultural, economic and/or hygienic aspects where the initial assessment has not provided sufficient knowledge. The evaluation showed that all sanitation systems were well accepted by the users. The highest hygienic risk is present in septic tanks, where sludge handling poses a high risk for persons handling it.

Application and Assessment of Different Decentralized Waste Water Treatment Technologies for a Hot-Dry Climate in Jordan for Reuse Purpose

2020 ◽  
Keyword(s):  
Wastewater Treatment ◽  
Energy Demand ◽  
Municipal Wastewater ◽  
Waste Water Treatment ◽  
Water Environment ◽  
Nitrification Rate ◽  
E Coli ◽  
Reuse Water ◽  
Treatment Technologies ◽  
The Cost

Jordan faces chronic water scarcity due to the very limited water resources and increasing water demand. Also increasing the energy cost of wastewater treatment raises the need to think about Sustainable Energy-Water-Environment Nexus in a dry climate. Moreover, wastewater treatment near to the generation place and reuse it at the same points is needed for decreases energy demand, save the cost and protect the environment. However, the innovations in decentralized wastewater technologies in Jordan aiming not only to treat the municipal wastewater but also to reuse water, energy, and nutrient again. Lab-analysis shows extremely high treatment efficiency that can be achieved by studied technologies to reduce BOD5 to 98.8%, COD to 96.5% and achievement high nitrification rate and good reduction of the parameters TSS, NO3, TN, and E. coli, to meet the Jordanian Standards for reuse.

scholarly journals Performance and reliability comparison of French vertical flow treatment wetlands with other decentralized wastewater treatment technologies in tropical climates

2020 ◽  
Vol 82 (8) ◽  
pp. 1701-1709
Author(s):  
Rémi Lombard-Latune ◽  
Florent Leriquier ◽  
Chafatayne Oucacha ◽  
Lucas Pelus ◽  
Gérald Lacombe ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plants ◽  
Treatment Wetlands ◽  
Vertical Flow ◽  
Small Communities ◽  
Decentralized Wastewater Treatment ◽  
Treatment Technologies ◽  
Rotating Biological Contactors ◽  
Overseas Territories ◽  
Flow Treatment

Abstract When implementing a sanitation system, the selection of treatment process can be difficult. Beyond removal efficiency and effluent concentrations, reliability should be taken into account. This study compares reliability of French vertical flow treatment wetlands (F-VFTW) with the four main decentralized wastewater treatment technologies in small communities in the French Overseas Territories (FOT). Analysis of 963 regulatory self-monitoring sampling campaigns performed on 213 wastewater treatment plants show that operational disruptions due to sludge loss and loss of nitrification are often reported for activated sludge technology; rotating biological contactors often suffer from weak settlement; facultative pond removal is limited by algae; and F-VFTW fulfills all the French regulatory objectives at a frequency of 90 to 95%. In addition, the data from this study are compared to a similar database from Brazil using a statistical approach (coefficient of reliability). Amongst the eight decentralized wastewater treatment technologies evaluated, F-VFTW appears to be the most appropriate for achieving the discharge standard with a reliability close to 95%. Its reliability to face both environmental (rainfall) and social (maintenance capacities) constraints is a key parameter.

Decentralized wastewater treatment technologies and management in Chinese villages

2014 ◽  
Vol 8 (6) ◽  
pp. 929-936 ◽  
Author(s):  
Xuesong Guo ◽  
Zehang Liu ◽  
Meixue Chen ◽  
Junxin Liu ◽  
Min Yang
Keyword(s):  
Wastewater Treatment ◽  
Decentralized Wastewater Treatment ◽  
Treatment Technologies

scholarly journals Biological control and management of the detoxication wastewater treatment technologies

2007 ◽  
Vol 61 (5) ◽  
pp. 213-221 ◽  
Author(s):  
Yana Topalova
Keyword(s):  
Water Pollution ◽  
Electron Microscopy ◽  
Wastewater Treatment ◽  
Practical Knowledge ◽  
Pilot Scale ◽  
Scale Modeling ◽  
Transmission Electron ◽  
Treatment Technologies ◽  
Control And Management ◽  
Xenobiotic Biodegradation

Detoxication technologies require the combination of theoretical and practical knowledge of xenobiotic biodegradation, wastewater treatment technologies, and management rules. The purpose of this complicated combination is to propose specialized strategies for detoxication, based on lab- and pilot-scale modeling. These strategies include preliminary created algorithms for preventing the risk of water pollution and sediments. The technologies and algorithms are essentially important outcome, applied in the textile, pharmaceutical, cosmetic, woodtreating, and oiltreating industries. In this paper four rehabilitation technologies for pretreatment of water contaminated by pentachlorophenol (PCP) have been developed in the frame of the European and Bulgarian National projects. Emphasize is put on the biological systems and their potential of detoxication management. The light and transmission electron microscopy of the reconstructed activated sludges the microbial, kinetic and enzymological indicators are presented and approved as critical points in the biocontrol.

Pollutants Removal Performance of Subsurface Wastewater Infiltration System under Different Hydraulic Loading Rates

2014 ◽  
Vol 675-677 ◽  
pp. 934-938
Author(s):  
Si Yu Song ◽  
Jing Pan ◽  
Yang Zhang
Keyword(s):  
Wastewater Treatment ◽  
Field Scale ◽  
Operational Parameter ◽  
Loading Rates ◽  
Hydraulic Loading ◽  
Decentralized Wastewater Treatment ◽  
Effective Depth ◽  
Removal Efficiencies ◽  
Pollutants Removal

Field-scale experiments were conducted through a subsurface wastewater infiltration system (SWIS), with effective depth of 0.8 m, under hydraulic loading rates (HLR) of 0.044, 0.071, 0.098 and 0.12 m3/(m2 d). Taking the hydraulic and treatment efficiencies into consideration, HLR of 0.098 m3/(m2 d) was recommended. Under this condition, NH3-N, COD, TN and TP average removal efficiencies were 82.6%, 83.7%, 80.6 and 91.5%, respectively. This study will guide the control of operational parameter of a SWIS when it applies in decentralized wastewater treatment.

Experiences with hybrid constructed wetland and pond system for polytypic wastewater treatment

2015 ◽  
Vol 10 (4) ◽  
pp. 771-776
Author(s):  
Ying Zhang ◽  
Jianqiang Du ◽  
Beiyan Xing ◽  
Gunther Geller ◽  
Heribert Rustige
Keyword(s):  
Wastewater Treatment ◽  
Constructed Wetlands ◽  
Industrial Wastewater ◽  
Eastern China ◽  
Advanced Materials ◽  
Tertiary Treatment ◽  
Decentralized Wastewater Treatment ◽  
Technological Structure ◽  
Treatment Technologies ◽  
Low Efficiency

Constructed wetlands (CWs) are some of the most popular extensive treatment technologies, which have been applied in many regions throughout the world. Subsurface horizontal flow wetlands (HFs) and vertical flow wetlands (VFs) are often used in wastewater treatment alone with low efficiency, but hybrid constructed wetlands (HCWs) can improve efficiency. This paper introduces the technological structure of an HCW in the case of tertiary treatment of industrial wastewater in Changshu Advanced Materials Industrial Park (CAMIP) and decentralized wastewater treatment projects on Lotus Island in eastern China.

The effect of aeration and effluent recycling on domestic wastewater treatment in a pilot-plant system of duckweed ponds

2013 ◽  
Vol 69 (2) ◽  
pp. 350-357 ◽  
Author(s):  
Miriam Ben-shalom ◽  
Semion Shandalov ◽  
Asher Brenner ◽  
Gideon Oron
Keyword(s):  
Wastewater Treatment ◽  
Positive Impact ◽  
Oxygen Demand ◽  
Domestic Wastewater ◽  
Pilot Scale ◽  
Pollutant Removal ◽  
Domestic Wastewater Treatment ◽  
In Series ◽  
Removal Efficiencies ◽  
Effluent Recycling

Three pilot-scale duckweed pond (DP) wastewater treatment systems were designed and operated to examine the effect of aeration and effluent recycling on treatment efficiency. Each system consisted of two DPs in series fed by pre-settled domestic sewage. The first system (duckweed+ conventional treatment) was ‘natural’ and included only duckweed plants. The second system (duckweed aeration) included aeration in the second pond. The third system (duckweed+ aeration+ circulation) included aeration in the second pond and effluent recycling from the second to the first pond. All three systems demonstrated similarly efficient removal of organic matter and nutrients. Supplemental aeration had no effect on either dissolved oxygen levels or on pollutant removal efficiencies. Although recycling had almost no influence on nutrient removal efficiencies, it had a positive impact on chemical oxygen demand and total suspended solids removals due to equalization of load and pH, which suppressed algae growth. Recycling also improved the appearance and growth rate of the duckweed plants, especially during heavy wastewater loads.

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