This study assessed the accumulation of Cd (II), Hg Cr (VI) and Pb (II) in Gynerium sagittatum (Gs), Colocasia esculenta (Ce) Heliconia psittacorum (He) planted constructed wetlands treating synthetic landfill leachate. Sixteen bioreactors were operated two experimental blocks. Metal concentrations influent effluent; root, stem, branch leaves plants analysed, as well COD, N-NH4+, TKN, T, pH, ORP, DO, EC. Average removal efficiencies TKN NH4+-N 66, 67 72%, respectively heavy metal ranged from...

Modernization is marked by an increase in pollution-related health risks due to the rapid economic and technological growth. In Global South, there concern regarding disease burden attributable chemical contaminants released into environment, especially river basins, where populations are exposed through multiple pathways. While significant research exists linking exposure disease, mostly occupational settings, less data available for open environment. Emerging pollutants have shown...

This paper discusses the applicability of effluent reuse in agriculture after treatment a series anaerobic, facultative and maturation ponds. The WSP system is located Ginebra municipality, small town southwest Colombia. total HRT 12 days. Several samples final were taken over 55 day period analysed for E. coli, Streptococcus spp. helminth eggs. Some additional grab to determine presence pathogenic bacteria such as Salmonella Shigella results showed that was able remove 4 log units 1 unit...

The design procedure for anaerobic ponds is based on calculations of the influent volumetric organic load as a function temperature and wastewater strength. Hydraulically either plug flow or completely mixed model assumed. However, factors such sludge sedimentation patterns, biogas bubbling accumulation may influence hydrodynamic behaviour pond hence its removal efficiency. results obtained show that incorrect positioning inlets outlets hydraulic performance ponds. dispersion number values...

Introduction: Exposure to pollutants such as pesticides and heavy metals has been linked health problems. Several studies have revealed the presence of these contaminants in Cali; however, there is no information available about main routes exposure risk contaminants.Objective: To estimate associated with intake cadmium, lead mercury, 2,4-D diuron through consumption water food a population Cali.Materials methods: Population environmental data were obtained, assessment was performed using...

The simulation of hydrodynamics and transport phenomena in waste stabilization ponds is a developing tool worth studying order to understand their internal processes interactions. Pond design involves several physical, hydrological, geometric dynamic variables so as provide high hydrodynamic efficiency maximum substrate utilization rates. CFD modelling allows the combination these factors predict behaviour having different configurations. two-dimensional depth-integrated model MIKE 21 was...

Este artículo muestra la relación entre las políticas económicas que han promovido al sector cañicultor y su impacto sobre el uso del agua en Colombia, haciendo énfasis Valle Cauca, tanto función abastecedora como asimiladora. Además, examina capacidad de soporte territorio valle río asociado a dinámica futura cultivo caña resultado nuevas apoyo los agrocombustibles.

Water security covers a wide range of issues and risks to people, the natural built environment, economy, interactions between these. This breadth creates an interconnected complexity potential for perceived intractability. Tackling water meaningfully therefore requires judgement in balancing holistic nature with reductionist understanding key processes elements. paper demonstrates that systems thinking can be adapted achieve this through different framings security, tailored local context....

The selection of any wastewater treatment technology should take into consideration both “software” and “hardware” aspects. There are contrasting opinions regarding the feasibility waste stabilisation ponds (WSP): some emphasise their advantages while others concerned with high land area requirements. As technology, WSP feasible under specific circumstances related to context where they be implemented. In this study data were collected from three regions in Colombia (Nariño, Tolima Valle del...

Greenhouse gas (GHG) emissions (CO(2), CH(4)) from pilot-scale algal and duckweed-based ponds (ABP DBP) were measured using the static chamber methodology. Daylight nocturnal variations of GHG wastewater characteristics (e.g. chemical oxygen demand (COD), pH) determined via sampling campaigns during midday (12:30-15:30) midnight (00:30-03:30) periods. The results showed that under daylight conditions in ABP median -232 mg CO(2) m(-2) d(-1) 9.9 CH(4) d(-1), DBP -1,654.5 71.4 respectively....

Abstract Water pollution due to human activities produces sedimentation, excessive nutrients, and toxic chemicals, this, in turn, has an effect on the normal endocrine functioning of living beings. Overall, water may affect some components fitness organisms (e.g., developmental time fertility). Some compounds found polluted waters are known as disruptors ( ED ), among these nonhalogenated phenolic chemicals such bisphenol A nonylphenol. To evaluate system, we subjected two generations (F0...

An anaerobic pond and a UASB reactor treating the same domestic sewage under environmental conditions were monitored at wastewater research technology transfer station in Ginebra, Valle del Cauca region Colombia. Preliminary results showed removal efficiencies of around 66, 78 69% for COD, BOD TSS, respectively. The parameters 68, 59 73%, A preliminary cost comparison has shown that construction operation maintenance costs are 16 38% less than those UASB, Based upon this study, it would seem...

Introduction: Global increase in food and water pollution is associated with health risk, which depends on the concentration, dose, exposure time. This has raised concerns about possible long-term effects of chronic to low concentrations heavy metals, such as lead, cadmium mercury. Objective: To explore relationship among socioeconomic status, eating patterns, metals a population women Cali, Colombia. Materials methods: A total 233 non-pregnant childbearing age living Aguablanca district...

Global increase in food and water pollution is associated with health risk, which depends on the concentration, dose, exposure time. This has raised concerns about possible long-term effects of chronic to low concentrations heavy metals, such as lead, cadmium mercury.