Analysis and occurrence of pharmaceuticals, estrogens, progestogens and polar pesticides in sewage treatment plant effluents, river water and drinking water in the Llobregat river basin (Barcelona, Spain)

2008 ◽  
Vol 358 (1-2) ◽  
pp. 112-123 ◽  
Author(s):  
Marina Kuster ◽  
Maria José López de Alda ◽  
Maria Dolores Hernando ◽  
Mira Petrovic ◽  
Jordi Martín-Alonso ◽  
...  
Keyword(s):  
Drinking Water ◽  
River Water ◽  
River Basin ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Polar Pesticides ◽  
Llobregat River

scholarly journals SLUDGE EFFECT ON GROUNDWATER QUALITY

2006 ◽  
Vol 1 ◽  
pp. 85
Author(s):  
A. Gontaszewska ◽  
A. Kraiński
Keyword(s):  
Heavy Metals ◽  
Drinking Water ◽  
Groundwater Quality ◽  
Unsaturated Zone ◽  
Permeability Coefficient ◽  
Small Area ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Effective Protection

The influence of sludge on the groundwater’s quality has been shown on the bases of the agricultural exploitation of the sludge from a sewage-treatment plant. Little thickness of unsaturated zone (8.8 m) is not effective protection against the infiltration of the pollution from the surface. Unsaturated zone consist of sand of permeability coefficient k=0,68 m/h. The time of the vertical infiltration into the aquifer has been estimated at t=14,4 days. The investigations carried out during fertilization with the sludge have revealed an undoubted increase in the concentration of some ions as well as the increase in pH of the groundwater. The increase in the amount of some ions (e.g. N-NO3, SO4, Zn) as well as detergents indicates the possibility (as function of time) of reaching higher values than the ones permissible for drinking water. The phenomenon of the increase in the concentration of the particular ions will be accelerated after depletion of sorption of the soil in the unsaturated zone. The time can be estimated for not more than several years, taking into account a small area of the fertilized fields and high contents of “pollution” in the sludge (the total of the heavy metals reaches up to 1,5 g/kg)

scholarly journals Seasonal variations in concentration and lability of dissolved organic carbon in Tokyo Bay

2015 ◽  
Vol 12 (1) ◽  
pp. 269-279 ◽  
Author(s):  
A. Kubo ◽  
M. Yamamoto-Kawai ◽  
J. Kanda
Keyword(s):  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
River Water ◽  
Seasonal Variations ◽  
Relative Concentration ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Tokyo Bay ◽  
Chl A

Abstract. Concentrations of recalcitrant and bioavailable dissolved organic carbon (DOC) and their seasonal variations were investigated at three stations in Tokyo Bay, Japan, and in two freshwater sources flowing into the bay. On average, recalcitrant DOC (RDOC), as a remnant of DOC after 150 days of bottle incubation, accounted for 78% of the total DOC in Shibaura sewage treatment plant (STP) effluent, 67% in the upper Arakawa River water, 66% in the lower Arakawa River water, and 78% in surface bay water. Bioavailable DOC (BDOC) concentrations, defined as DOC minus RDOC, were lower than RDOC at all stations. In freshwater environments, RDOC concentrations were almost constant throughout the year. In the bay, RDOC was higher during spring and summer than in autumn and winter because of freshwater input and biological production. The relative concentration of RDOC in the bay derived from phytoplankton, terrestrial, and open-oceanic waters was estimated to be 8–10, 21–32, and 59–69%, respectively, based on multiple regression analysis of RDOC, salinity, and chl a. In addition, comparison with previous data from 1972 revealed that concentrations of RDOC and BDOC have decreased by 33 and 74% at freshwater sites and 39 and 76% in Tokyo Bay, while the ratio of RDOC to DOC has increased. The change in DOC concentration and composition was probably due to increased amounts of STP effluent entering the system. Tokyo Bay exported mostly RDOC to the open ocean because of the remineralization of BDOC.

scholarly journals An Approach towards Minimizing Sewage Inflow in Kelo River across Raigarh City

2021 ◽  
Vol 9 (VII) ◽  
pp. 2149-2153
Author(s):  
Ashish Pradhan
Keyword(s):  
River Water ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
The State ◽  
Industrial City ◽  
Treatment Technologies ◽  
Basic Need ◽  
The City

Raigarh is a rapidly growing industrial city situated in the state of Chhattisgarh, spread over an area of 46.54 km2. It is characterized by its rising population, mounting urbanization, and motorization. The population, of the city, is 1,66,460 as per the census year 2011 and it will be increased by 2,90,988 till the year 2035. There will be an increase not only economically but also there will be a rise in population along with infrastructure works so there is a basic need at the construction of a sewage treatment plant with a view of sufficient capacity to treat the sewage. The objectives of this study are to review and evaluate sewage treatment technologies and propose a sewage treatment plant to improve Kelo River water.

Listeria species incidence and characterisation in a river receiving town sewage from a sewage treatment plant

1997 ◽  
Vol 35 (11-12) ◽  
pp. 201-204 ◽  
Author(s):  
M. P. Combarro ◽  
M. González ◽  
M. Araujo ◽  
A. C. Amezaga ◽  
R. A. Sueiro ◽  
...  
Keyword(s):  
River Water ◽  
Antimicrobial Agents ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Average Efficiency ◽  
Listeria Species ◽  
Species Incidence

This study evaluated the ability of a sewage treatment plant to eliminate Listeria species and the incidence of Listeria species in the river receiving the effluent. The average efficiency of removal of Listeria species in the treatment plant was 92%. Despite the efficiency of the plant being within the limits established by the EC Directive in terms of BOD5 decrease, an increase in the levels of Listeria species was still observed downstream from the plant. The species isolated with greatest frequency, both in the influent and effluent as well as the river water, was L. monocytogenes followed by L. seeligeri and L. welshimeri. L. ivanovii was only found in very low proportions in the river samples. The analysis of the sensitivity of Listeria species to 22 antimicrobial agents demonstrated the presence of a high percentage of bacteria resistant to aztrenam, cefuroxme, cetriaxone and to a leser degree moxalactam and cefotaxime. In contrast, resistance to aminoglycosides and tetracycline was only observed in a low number of isolates.

Occurrence and Removal of PPCPs and EDCs in the Detroit River Watershed

2010 ◽  
Vol 5 (1) ◽  
Author(s):  
Shahram Tabe ◽  
Paul Yang ◽  
Xiaoming Zhao ◽  
Chunyan Hao ◽  
Rajesh Seth ◽  
...  
Keyword(s):  
Drinking Water ◽  
Water Samples ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Endocrine Disrupting Compounds ◽  
Detroit River ◽  
River Watershed ◽  
Treated Drinking Water ◽  
Drinking Water Samples

The occurrence of 51 pharmaceuticals and personal care products (PPCPs) and endocrine disrupting compounds (EDCs) in the Detroit River Watershed (DRW) was investigated. Also, the efficiency of local water treatment plants (WTPs) in removing these pollutants was evaluated. Samples were collected from various locations in the DRW, including the discharge of a sewage treatment plant (STP), downstream of the STP on the Detroit River, the intakes of the WTPs, and treated drinking water. Of the 51 target substances analyzed, 12 were not detected in any of the samples, while 14 were detected consistently in all samples from the STP effluent. The concentration of target chemicals was two to four orders of magnitude higher in the STP effluents than at the intakes of the WTPs. In total, 10 substances were detected in at least 10% of the drinking water samples. Two compounds, perfluorooctanoic acid (PFOA) and perfluorooctyl solfonate (PFOS), were found in 90+% of the drinking water samples.

scholarly journals Influence of Sitkówka sewage treatment plant on the Bobrza River water quality

2017 ◽  
Vol 34 (1) ◽  
pp. 153-162 ◽  
Author(s):  
Włodzimierz Kanownik ◽  
Agnieszka Policht-Latawiec ◽  
Anna Gajda
Keyword(s):  
Water Quality ◽  
River Water ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Electrolytic Conductivity ◽  
Primary Data ◽  
Dissolved Solids ◽  
Sewage Discharge ◽  
Treated Sewage

Abstract The paper presents an analysis of 20 physicochemical elements in the Bobrza River water sampled above and below the treated sewage discharge point. Sitkówka mechanical and biological sewage treatment plant with a value of 289 000 People Equivalent discharges on average 51 000 m3 of treated sewage daily, which makes up 29% of mean daily flow in the Bobrza River. On the basis of hydrochemical analyses it was stated that the discharge of treated sewage led to worsening of 18 out of 20 studied water quality indices in the Bobrza River. In the river water below the sewage discharge statistically significantly higher values of electrolytic conductivity, dissolved solids, calcium, magnesium, sodium and potassium were registered. A decrease in dissolved oxygen content in the water and increase in its electrolytic conductivity caused a change of water quality class in the Bobrza River from the maximum potential to potential below good. On the other hand, increase in concentrations of dissolved solids and sulphates caused a change of the water class from the maximum potential to good potential. Statistical factor analysis (FA) made possible a reduction of a set of 20 physicochemical elements to four mutually orthogonal factors explaining 95% (above the treatment plant) and 96% (below the treatment plant) of the internal structure of primary data. The first factor is connected with point source pollution (sewage discharge), the second describes oxygen conditions in water, the third results from seasonality and is responsible for the pollutants from natural sources, whereas the fourth factor has not been unanimously defined yet.

scholarly journals Predicting fate of the contraceptive pill in wastewater treatment and discharge

2005 ◽  
Vol 52 (8) ◽  
pp. 279-286 ◽  
Author(s):  
M. Mastrup ◽  
A.I. Schäfer ◽  
S.J. Khan
Keyword(s):  
Drinking Water ◽  
Wastewater Treatment ◽  
Food Chain ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Endocrine Disrupters ◽  
Average Dose ◽  
Contraceptive Pill ◽  
Important Message

The risk of endocrine disrupters to humans and wildlife is to date poorly understood, although evidence of effects is now widespread. In understanding the risk, an important step is the determination of the partitioning, as well as chemical and biochemical transformation, of compounds in the environment, the water cycle and the food chain. This is a complex task and this paper is a first step towards estimating some of these factors from a largely theoretical approach. A chemical fate model is used to predict the fate of the contraceptive drug 17α-ethinylestradiol (EE2). The example of the contraceptive pill is chosen to follow the journey of the drug from human ingestion and excretion to treatment in a sewage treatment plant (STP) using fugacity-based fate models, followed by discharge into a receiving river and eventually into the estuary/sea. The model predicts how EE2 will partition into the different compartments during each stage of this journey and thereby infiltrate into the food chain. The results suggest that a person would have to ingest more than 30,000 portions of fish to consume an equivalent to a single average dose of the contraceptive pill. While this scenario is highly unlikely, the biochemical consequence of the contraceptive pill is greatly significant. Furthermore, there are many identified similarly estrogenic compounds in the environment while this study only considers one. Cumulative effects of such compounds as well as degradation into other potent compounds may be anticipated. An important message in this paper is the interrelation of wastewater effluent discharge and eventual human exposure of marginally degradable and lipophilic chemicals. While at present the main concerns regarding endocrine disrupters appear to be the fear of their occurrence in drinking water sources, it is clear that the domains of wastewater treatment and discharge, water supply and contamination of food should not be treated as separate issues. The model suggests that exposure from food (contaminated by effluent) may be much more significant than from drinking water.

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