Distribution of Treated-Wastewater Constituents in Pore Water at a Pond-Bottom Reactive Barrier, Cape Cod, Massachusetts

AbstractIn the present study, we investigated the impact of treated wastewater (TWW) irrigation on the prevalence of antibiotic resistance genes (ARGs) in subsoil pore-water, a so-far under-appreciated matrix. We hypothesized that TWW irrigation increases ARG prevalence in subsoil pore-water. This hypothesis was tested using a multiphase approach, which consisted of sampling percolated subsoil pore-water from lysimeter-wells of a real-scale TWW-irrigated field, operated for commercial farming practices, and controlled, laboratory mesocosms irrigated with freshwater or TWW. We monitored the abundance of six selected ARGs (sul1, blaOXA-58, tetM, qnrS, blaCTX-M-32 and blaTEM), the intI1 gene associated with mobile genetic elements and an indicator for anthropogenic pollution and bacterial abundance (16S rRNA gene) by qPCR. The bacterial load of subsoil pore water was independent of both, irrigation intensity in the field study and irrigation water type in the mesocosms. Among the tested genes in the field study, sul1 and intI1 exhibited constantly higher relative abundances. Their abundance was further positively correlated with increasing irrigation intensity. Controlled mesocosm experiments verified the observed field study results: the relative abundance of several genes, including sul1 and intI1, increased significantly when irrigating with TWW compared to freshwater irrigation. Overall, TWW irrigation promoted the spread of ARGs and intI1 in the subsoil pore-water, while the bacterial load was maintained. The combined results from the real-scale agricultural field and the controlled lab mesocosms indicate that the dissemination of ARGs in various subsurface environments needs to be taken into account during TWW irrigation scenarios.Graphical abstractHighlightsTWW irrigation intensity and sul1 & intI1 abundance correlate in a real-scale fieldARGs & intI1 increase in subsoil pore-water during TWW irrigation in mesocosmsNo increase of ARGs & intI1 in freshwater irrigated mesocosmsTWW irrigation does not affect the bacterial load of subsoil pore-water

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Effect of artificial recharge on submarine groundwater discharge: a Belgian case study

10.5194/egusphere-egu21-7495 ◽

2021 ◽

Author(s):

Marieke Paepen ◽

Kristine Walraevens ◽

Thomas Hermans

Keyword(s):

Electrical Resistivity ◽

Pore Water ◽

Submarine Groundwater Discharge ◽

Artificial Recharge ◽

Groundwater Discharge ◽

High Tide ◽

Sewage Treatment Plant ◽

Treated Wastewater ◽

The West ◽

Submarine Groundwater

The Belgian coastal phreatic aquifer is mostly characterized by salty/brackish pore water at shallow depth. The eolian dunes delimiting the sandy beach are one of the few locations where fresh potable water can be found. The drinking water demand of the coastal region is putting high pressure on these water resources, especially during the touristic summer season. Also, the dryer summers that were faced over the last years increase the need for solutions.At Oostduinkerke, the Intercommunale Waterleidingsmaatschappij van Veurne-Ambacht (IWVA) combines the pumping of groundwater in the dunes with artificial surface (since 2002) and underground recharge (since 2014) for more sustainable exploitation. The infiltrating water is treated effluent from a nearby sewage treatment plant (Aquafin, Wulpen). The recharge in the dunes reduces the risk of attracting salty/brackish water from the North Sea and the lower lying polder area in the South and allows for more stable groundwater levels, especially around the infiltration lake.To assess the efficiency of the managed aquifer recharge project, we collected electrical resistivity tomography (ERT) data offshore, on the beach, and part of the dunes. Marine continuous resistivity profiling (CRP) were performed during both low and high tide. The latter provide a good overlap with the land ERT. The profiles were collected in front of the IWVA site, as well as, to the west and east, to assess the lateral variation of the salt-freshwater distribution in the aquifer. Based on the electrical resistivity distribution, we are able to identify the patterns of submarine groundwater discharge (SGD) and saltwater intrusion in the study area.The infiltration of treated wastewater directly affects the piezometric levels of the surrounding area. Before the exploitation started in the dunes (1947), the natural freshwater heads were higher west of the infiltration area, due to the presence of a shallow clay layer (Vandenbohede et al., 2008). The higher hydraulic heads are also seen on recent groundwater models (Lebbe, 2017), but despite the larger hydraulic gradient in the West, the pore water resistivity seems to be higher in front of the IWVA site based on our data. Also, the zone of discharge is found below the low water line in front of the infiltration site, while it is seen on the beach to the west and east. We can assume that the SGD flux is largest in front of the recharge site (Paepen et al., 2020). Therefore, SGD seems to be enhanced by artificial recharge in this area. Further research is needed to validate this.Lebbe, L. (2017). Grondwatermodel van de geplande wijzigingen in waterwinning Sint-Andr&#233;. Opdrachtgever: Intercommunale Waterleidingsmaatschappij van Veurne Ambacht (IWVA).Paepen, M., Hanssens, D., Smedt, P. D., Walraevens, K., & Hermans, T. (2020). Combining resistivity and frequency domain electromagnetic methods to investigate submarine groundwater discharge in the littoral zone. Hydrology and Earth System Sciences, 24(7), 3539-3555.Vandenbohede, A., Van Houtte, E., & Lebbe, L. (2009). Sustainable groundwater extraction in coastal areas: a Belgian example. Environmental Geology, 57(4): 735-747.

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Ground-water-quality data for a treated-wastewater plume undergoing natural restoration, Ashumet Valley, Cape Cod, Massachusetts

Data Series ◽

10.3133/ds198 ◽

2006 ◽

Cited By ~ 2

Author(s):

Jennifer G. Savoie ◽

Richard L. Smith ◽

Douglas B. Kent ◽

Kathryn M. Hess ◽

Denis R. LeBlanc ◽

...

Keyword(s):

Water Quality ◽

Ground Water ◽

Treated Wastewater ◽

Quality Data ◽

Cape Cod ◽

Ground Water Quality ◽

Water Quality Data ◽

Natural Restoration

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DECOLOURIZATION AND COD REMOVAL OF WASEWATER FROM ETHANOL PRODUCTION PROCESS FROM MOLASSES BY COAGULANTION USING INORGANIC ALUM

Science and Technology Development Journal ◽

10.32508/stdj.v13i3.2146 ◽

2010 ◽

Vol 13 (3) ◽

pp. 92-102

Author(s):

Trung Duc Le

Keyword(s):

Ethanol Production ◽

Oxygen Demand ◽

Cod Removal ◽

Treated Wastewater ◽

Treatment Processes ◽

Physico Chemical ◽

Biological Methods ◽

Treatment Step ◽

Main Material

The industrial production of ethanol by fermentation using molasses as main material that generates large quantity of wastewater. This wastewater contains high levels of colour and chemical oxygen demand (COD), that may causes serious environmental pollution. Most available treatment processes in Vietnam rely on biological methods, which often fail to treat waste water up to discharge standard. As always, it was reported that quality of treated wastewater could not meet Vietnameses discharge standard. So, it is necessary to improve the treatment efficiency of whole technological process and therefore, supplemental physico-chemical treatment step before biodegradation stage should be the appropriate choice. This study was carried out to assess the effect of coagulation process on decolourization and COD removal in molasses-based ethanol production wastewater using inorganic coaglutant under laboratory conditions. The experimental results showed that the reductions of COD and colour with the utilization of Al2(SO4)3 at pH 9.5 were 83% and 70%, respectively. Mixture FeSO4 – Al2(SO4)3 at pH 8.5 reduced 82% of colour and 70% of COD. With the addition of Polyacrylamide (PAM), the reduction efficiencies of colour, COD and turbidity by FeSO4 – Al2(SO4)3 were 87%, 73.1% and 94.1% correspondingly. It was indicated that PAM significantly reduced the turbidity of wastewater, however it virtually did not increase the efficiencies of colour and COD reduction. Furthermore, the coagulation processes using PAM usually produces a mount of sludge which is hard to be deposited.

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George Wilbur: Otto Rank and Hanns Sachs

Psychoanalysis and History ◽

10.3366/pah.2006.8.1.43 ◽

2006 ◽

Vol 8 (1) ◽

pp. 43-63 ◽

Cited By ~ 3

Author(s):

Paul Roazen

Keyword(s):

Cape Cod ◽

Excellent Source ◽

Source Of Information ◽

Otto Rank

George Wilbur, a pioneering Cape Cod psychoanalytic psychiatrist, was a longstanding editor of the journal American Imago, and an excellent source of information about the Viennese analysts Otto Rank and Hanns Sachs. Wilbur was also knowledgeable about the early reception of psychoanalysis in the Boston community.

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Vernacular American Landscape: Methodists, Camp Meetings, and Social Respectability

Religion and American Culture A Journal of Interpretation ◽

10.1525/rac.1994.4.2.03a00020 ◽

1994 ◽

Vol 4 (2) ◽

pp. 165-191 ◽

Cited By ~ 1

Author(s):

Roger Robins

Keyword(s):

Cape Cod ◽

Church Members ◽

White Mountains ◽

Martha's Vineyard ◽

Home State ◽

American Landscape ◽

Camp Meetings ◽

Martha’S Vineyard ◽

Religious Landscape ◽

The Church

In 1822, from his Conway home in the shadow of New Hampshire's White Mountains, one Dr. Porter surveyed the nation's religious landscape and prophesied, “in half a century there will be no Pagans, Jews, Mohammedans, Unitarians or Methodists.” The prophecy proved false on all counts, but it was most glaringly false in the case of the Methodists. In less than a decade, Porter's home state became the eighth to elect a Methodist governor. Should Porter have fled south into Massachusetts to escape the rising Methodist tide, he would only have been buying time. True, the citizens of Provincetown, Massachusetts, had, in 1795, razed a Methodist meetinghouse and tarred and feathered a Methodist in effigy. By 1851, however, the Methodists boasted a swelling Cape Cod membership, a majority of the church members on Martha's Vineyard, and a governor in the Massachusetts statehouse.

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