The advancement and modernization of industries have provided numerous benefits to human life inc... more The advancement and modernization of industries have provided numerous benefits to human life including diversification of manufacturing a wide range of products made from plastic materials, thereby leading to the generation of huge quantities of plastic waste. Owing to the increasing issues related with plastic waste, recycling methods have attracted much interest. Recycling not only protects the environment and resources for future generations but also reduces energy consumption and greenhouse gas emissions. A wide range of valuable products including char, oil, fuels, sorbent materials, and chemicals can be obtained through different techniques. This Review highlights various sustainable research avenues and potential routes to reduce the environmental impact of plastic waste based on both traditional and potential approaches for its utilization.
80% of all wastewater worldwide is released untreated into the environment, leading to deteriorat... more 80% of all wastewater worldwide is released untreated into the environment, leading to deteriorating water quality. Achieving universal access to sanitation while improving water quality by halving the proportion of untreated wastewater and increasing its safe reuse are targets 6.2 and 6.3 of the Sustainable Development Goals (SDGs).
Journal of Environmental Engineering and Science, Sep 1, 2021
This study aimed to identify how drip irrigation could be useful to control such heavy metal issu... more This study aimed to identify how drip irrigation could be useful to control such heavy metal issues, practically and affordably. A vegetable crop (i.e. Cauliflower) was the subject of the test. Heavy metal accumulation in the soils and the uptake by the cauliflower curd were observed for two consecutive years. Municipal wastewater and groundwater were used for irrigation, to make it a comparative study. There were eight treatments: drip irrigation with groundwater through inline (non-pressure compensating) surface drip (T1), inline subsurface drip (T2), bioline (pressure compensating) subsurface drip (T3), bioline surface drip (T4), and the same drip systems using primarily treated municipal wastewater (T5 to T8). Results showed that significantly higher concentrations of heavy metals i.e. Copper, Iron, Manganese, and Zinc were recorded in cauliflower curd irrigated with wastewater compared to groundwater. Subsurface placement of pressure compensating drip laterals was found more effective in reducing the heavy metal concentrations both in Cauliflower and soil profile as compared to surface placed non-pressure compensating drip laterals. This study suggests that drip irrigation systems could be an effective method to reduce heavy metal concentration in vegetable crops and the soils irrigated with treated municipal wastewater.
Environmental Science and Pollution Research, Nov 14, 2017
Untreated wastewater is a risk factor for the spread of antibiotic resistance in the environment.... more Untreated wastewater is a risk factor for the spread of antibiotic resistance in the environment. However, little is known about the contribution of untreated wastewater to the burden of antibiotic resistance in the Nigerian environment. In this study, a total of 143 ceftazidime-/cefpodoxime-resistant bacteria isolated from untreated wastewater and untreated wastewater-contaminated surface and groundwater in Nigeria were screened for extended-spectrum β-lactamase (ESBL) genes, integrons and integron gene cassettes by PCR. The genetic environment of blaCTX-M-15 was mapped by PCR and potentially conjugative plasmids were detected among the isolates by degenerate primer MOB typing (DPMT). ESBL production was confirmed in 114 (79.7%) isolates and ESBL genes (blaSHV, blaCTX-M-15 and blaTEM) were detected in 85 (74.6%) ESBL-producing isolates. blaCTX-M-15 was associated with ISEcp1 and with orf477 in 12 isolates and with ISEcp1, IS26 and orf477 in six others. To the best of our knowledge, this is the first report of blaCTX-M-15 in hand-dug wells and borehole serving as sources of drinking water and a first report of the genetic environment of blaCTX-M-15 in environmental bacteria from Nigeria. The results of this study confirm untreated wastewater as an important medium for the spread of ESBL-producing bacteria within the Nigerian environment. Hence, the widespread practice of discharging untreated wastewater into the aquatic ecosystem in Nigeria is a serious risk to public health.
The business case for circular economy in water management perspective has gain relevance in the ... more The business case for circular economy in water management perspective has gain relevance in the recent times. By 2030, it is estimated that 160% of global total available water will be required to satisfy demand of anthropogenic-related activities and increasing waste-related water will be produced. Gaps on the conceptual framing of water reuse within supply chain management are clearly emerging and the demand for decision support systems helping at assessing effective water consumption in industrial setting is pressing. Despite the numerous local initiatives towards wastewater resource usage, barriers remain for its implementation in practice. Through a systematic review of previous studies in this field, the barriers towards the uptake of wastewater use in agriculture were classified according to the PESTEL (political, economic, social, technological, environmental and legal) framework. Alongside political and legal support, it is identified that for an economically and environmentally sustainable scheme for incentivising the deployment of feasible technologies, there is also a need to gain acceptance for wastewater usage in society in order to enhance the deployment of existing technological solutions. Addressing these factors in tandem can aid the development towards a circular economy for wastewater.
No public plants, 11 private plants within industrial areas. The WWTP studied here is one of 14 s... more No public plants, 11 private plants within industrial areas. The WWTP studied here is one of 14 small scale plants built by a private trust.
w The original article has been corrected. In the published article, the authors were not correct... more w The original article has been corrected. In the published article, the authors were not correctly tagged to the affiliations. This correction article contains the author group with their correct affiliations.
The advancement and modernization of industries have provided numerous benefits to human life inc... more The advancement and modernization of industries have provided numerous benefits to human life including diversification of manufacturing a wide range of products made from plastic materials, thereby leading to the generation of huge quantities of plastic waste. Owing to the increasing issues related with plastic waste, recycling methods have attracted much interest. Recycling not only protects the environment and resources for future generations but also reduces energy consumption and greenhouse gas emissions. A wide range of valuable products including char, oil, fuels, sorbent materials, and chemicals can be obtained through different techniques. This Review highlights various sustainable research avenues and potential routes to reduce the environmental impact of plastic waste based on both traditional and potential approaches for its utilization.
80% of all wastewater worldwide is released untreated into the environment, leading to deteriorat... more 80% of all wastewater worldwide is released untreated into the environment, leading to deteriorating water quality. Achieving universal access to sanitation while improving water quality by halving the proportion of untreated wastewater and increasing its safe reuse are targets 6.2 and 6.3 of the Sustainable Development Goals (SDGs).
Journal of Environmental Engineering and Science, Sep 1, 2021
This study aimed to identify how drip irrigation could be useful to control such heavy metal issu... more This study aimed to identify how drip irrigation could be useful to control such heavy metal issues, practically and affordably. A vegetable crop (i.e. Cauliflower) was the subject of the test. Heavy metal accumulation in the soils and the uptake by the cauliflower curd were observed for two consecutive years. Municipal wastewater and groundwater were used for irrigation, to make it a comparative study. There were eight treatments: drip irrigation with groundwater through inline (non-pressure compensating) surface drip (T1), inline subsurface drip (T2), bioline (pressure compensating) subsurface drip (T3), bioline surface drip (T4), and the same drip systems using primarily treated municipal wastewater (T5 to T8). Results showed that significantly higher concentrations of heavy metals i.e. Copper, Iron, Manganese, and Zinc were recorded in cauliflower curd irrigated with wastewater compared to groundwater. Subsurface placement of pressure compensating drip laterals was found more effective in reducing the heavy metal concentrations both in Cauliflower and soil profile as compared to surface placed non-pressure compensating drip laterals. This study suggests that drip irrigation systems could be an effective method to reduce heavy metal concentration in vegetable crops and the soils irrigated with treated municipal wastewater.
Environmental Science and Pollution Research, Nov 14, 2017
Untreated wastewater is a risk factor for the spread of antibiotic resistance in the environment.... more Untreated wastewater is a risk factor for the spread of antibiotic resistance in the environment. However, little is known about the contribution of untreated wastewater to the burden of antibiotic resistance in the Nigerian environment. In this study, a total of 143 ceftazidime-/cefpodoxime-resistant bacteria isolated from untreated wastewater and untreated wastewater-contaminated surface and groundwater in Nigeria were screened for extended-spectrum β-lactamase (ESBL) genes, integrons and integron gene cassettes by PCR. The genetic environment of blaCTX-M-15 was mapped by PCR and potentially conjugative plasmids were detected among the isolates by degenerate primer MOB typing (DPMT). ESBL production was confirmed in 114 (79.7%) isolates and ESBL genes (blaSHV, blaCTX-M-15 and blaTEM) were detected in 85 (74.6%) ESBL-producing isolates. blaCTX-M-15 was associated with ISEcp1 and with orf477 in 12 isolates and with ISEcp1, IS26 and orf477 in six others. To the best of our knowledge, this is the first report of blaCTX-M-15 in hand-dug wells and borehole serving as sources of drinking water and a first report of the genetic environment of blaCTX-M-15 in environmental bacteria from Nigeria. The results of this study confirm untreated wastewater as an important medium for the spread of ESBL-producing bacteria within the Nigerian environment. Hence, the widespread practice of discharging untreated wastewater into the aquatic ecosystem in Nigeria is a serious risk to public health.
The business case for circular economy in water management perspective has gain relevance in the ... more The business case for circular economy in water management perspective has gain relevance in the recent times. By 2030, it is estimated that 160% of global total available water will be required to satisfy demand of anthropogenic-related activities and increasing waste-related water will be produced. Gaps on the conceptual framing of water reuse within supply chain management are clearly emerging and the demand for decision support systems helping at assessing effective water consumption in industrial setting is pressing. Despite the numerous local initiatives towards wastewater resource usage, barriers remain for its implementation in practice. Through a systematic review of previous studies in this field, the barriers towards the uptake of wastewater use in agriculture were classified according to the PESTEL (political, economic, social, technological, environmental and legal) framework. Alongside political and legal support, it is identified that for an economically and environmentally sustainable scheme for incentivising the deployment of feasible technologies, there is also a need to gain acceptance for wastewater usage in society in order to enhance the deployment of existing technological solutions. Addressing these factors in tandem can aid the development towards a circular economy for wastewater.
No public plants, 11 private plants within industrial areas. The WWTP studied here is one of 14 s... more No public plants, 11 private plants within industrial areas. The WWTP studied here is one of 14 small scale plants built by a private trust.
w The original article has been corrected. In the published article, the authors were not correct... more w The original article has been corrected. In the published article, the authors were not correctly tagged to the affiliations. This correction article contains the author group with their correct affiliations.
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