Treated and untreated wastewater effluents alter river sediment bacterial communities involved in nitrogen and sulphur cycling

Martínez‐Santos, Miren; Lanzén, Anders; Unda-Calvo, Jessica; Martín, Iker; Garbisu, Carlos; Ruiz‐Romera, Estilita

doi:10.1016/j.scitotenv.2018.03.229

Cited by 68 publications

(36 citation statements)

References 58 publications

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“…Due to the temperature of the region, polluted water could cause insect proliferation inducing human health risks. Besides, untreated wastewater on natural streams promotes eutrophication affecting aquatic biodiversity, even at the microorganism level [38]. Also, wastewater contains potentially harmful pathogens, antibiotic resistant bacteria and even toxic or biologically disruptive chemicals, which could affect human health for exposed population, as reported in Contreras et al [39].…”

Section: Wastewater Production Analysismentioning

confidence: 99%

Potential Uses of Treated Municipal Wastewater in a Semiarid Region of Mexico

Ramos¹,

Gonzalez²,

Echeverri

et al. 2019

Sustainability

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This paper presents an assessment of three potential applications of municipal treated wastewater in a semiarid region of northern Mexico. The potential applications considered are agriculture, industry, and watering urban green areas. The results indicate that in the best scenario, the maximal application of treated wastewater is 150 L/s for industrial activities. Besides industrial applications, this scenario would allow farmers and urban green areas to receive 980 L/s and 70 L/s of treated wastewater respectively. Other issues and alternatives are also identified. With the implementation of this scenario, it is possible to improve the environmental, and even the socioeconomic conditions, of the study region.

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Section: Wastewater Production Analysismentioning

confidence: 99%

Potential Uses of Treated Municipal Wastewater in a Semiarid Region of Mexico

Ramos¹,

Gonzalez²,

Echeverri

et al. 2019

Sustainability

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“…Water 2018, 10, x FOR PEER REVIEW 9 of 17 7. a housing element (Figure 12) with interchangeable filter cartridges.…”

Section: Laboratory Setupmentioning

confidence: 99%

“…Nowadays, progressive industrialization and uncontrolled social and economic development, with consequent pollution and environmental degradation, have made water treatment absolutely necessary for many uses (e.g., [1][2][3]). Treatment processes have two important purposes: (1) to make possible the use of water that otherwise would not fit the required specific purpose, which may be a human, domestic, industrial, or agricultural one [4][5][6]; and (2) to make the water, which was previously polluted by specific processes and operations, safe (e.g., [7,8]). Specifically, the progressive deterioration of water quality, due to various contaminating processes, has made necessary in most of the cases a proper treatment of water before human utilization.…”

Section: Introductionmentioning

confidence: 99%

Experimental Analysis of the Hydraulic Performance of Filtering Cartridges in Drinking Water Networks

Viccione

Evangelista

Marinis

2018

Water

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Liquid treatment processes have been assuming increasing importance in recent decades with the progressive industrialization to ensure public health security for drinking water or to prevent economic damage when safeguarding important production processes. Major investments have been devoted to the research, study, and design of innovative products that are able to respond to the demands of the market, which currently offer several solutions, among which filtration treatment still represents a major one. This work focuses, in particular, on filtration of drinking water with filter cartridges, with the aim to test their hydraulic performance and, particularly, to evaluate the head losses that they produce when introduced into a hydraulic system. The local pressure drops, in fact, may compromise hydraulic plants already characterized by low pressures. What is more, this condition is increasingly likely in supplying networks due to the coexistence of several factors, such as water losses due to failures and inefficient maintenance, severe and prolonged droughts, and increased water demand related to social and economic development. In these systems, the insertion of filtration cartridges can make the pressure levels fall below the minimum limit recommended to ensure the smooth operation of domestic devices. More in detail, in the present study the behavior of seven different commercial filter cartridges was analyzed through a set of experiments conducted in a pilot circuit at the Laboratory of Environmental and Maritime Hydraulics (LIDAM), University of Salerno. These tests have been performed in different operating conditions, collecting pressure data through various pressure gauges. The analysis proved that for common values of operating flow rates in domestic plants the pressure drops in the filter can be of the order of some meters and provided some useful information for the choice of the proper cartridge in low-pressure distribution systems.

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“…Among them, industrial wastewater has become one of the important sources of urban river aquatic environment pollution [3]. Exceeding a certain content of organic and inorganic contaminants in industrial wastewater will not only have negative consequences for aquatic ecosystems [4][5][6] but also pose signi cant health risks for water users [2]. The discharge of improperly treated wastewater into rivers or reservoirs used for agricultural irrigation may also have indirect adverse impacts on human health [7].…”

Section: Introductionmentioning

confidence: 99%

Impact of long-term industrial contamination on the bacterial communities in urban river sediments

Zhang

et al. 2020

Preprint

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Background: The contamination of the aquatic environment of urban rivers with industrial wastewater has affected the abiotic conditions and biological activities of the trophic levels of the ecosystem, particularly sediments. However, most current research about microorganism in urban aquatic environments has focused on indicator bacteria related to feces and organic pollution. Meanwhile, they ignored the interactions among microorganisms. To deeply understand the impact of industrial contamination on microbial community, we study the bacterial community structure and diversity in river sediments under the influence of different types of industrial pollution by Illumina MiSeq high-throughput sequencing technology and conduct a more detailed analysis of microbial community structure through co-occurrence networks.Results: The overall community composition and abundance of individual bacterial groups differed between samples. In addition, redundancy analysis indicated that the structure of the bacterial community in river sediments was influenced by a variety of environmental factors. TN, TP, TOC and metals (Cu, Zn and Cd) were the most important driving factors that determined the bacterial community in urban river sediments (P <0.01). According to PICRUSt analysis, the bacterial communities in different locations had similar overall functional profiles. It is worth noting that the 15 functional genes related to xenobiotics biodegradation and metabolism were the most abundant in the same location. The non-random assembly patterns of bacterial composition in different types of industrially polluted sediments were determined by a co-occurrence network. Environmental conditions resulting from different industrial pollutants may play an important role in determining their co-occurrence patterns of these bacterial taxa. Among them, the bacterial taxa involved in carbon and nitrogen cycles in module I were relatively abundant, and the bacterial taxa in module II were involved in the repair of metal pollution.Conclusions: Our data indicate that long-term potential interactions between different types of industrial pollution and taxa collectively affect the structure of the bacterial community in urban river sediments.

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Treated and untreated wastewater effluents alter river sediment bacterial communities involved in nitrogen and sulphur cycling

Cited by 68 publications

References 58 publications

Potential Uses of Treated Municipal Wastewater in a Semiarid Region of Mexico

Potential Uses of Treated Municipal Wastewater in a Semiarid Region of Mexico

Experimental Analysis of the Hydraulic Performance of Filtering Cartridges in Drinking Water Networks

Impact of long-term industrial contamination on the bacterial communities in urban river sediments

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