Remediation of Pb (II), Cd (II), and Zn (II) from aqueous solutions using porous (styrene-divinylbenzene)/Cu-Ni bimetallic nanocomposite microspheres: continuous fixed-bed column study.

Bimetallic nanoparticles (BNPs) have been used as a new line of defence against heavy metal contamination among several types of nanoparticles (NPs) due to their enhanced, synergistic activity. In this study, we investigated the adsorption behaviour of porous (styrene-divinylbenzene)/CuNi bimetallic nanocomposite (P(St-DVB)/CuNi BNC) in a continuous flow fixed-bed column and its ability to remove Pb (II), Cd (II), and Zn (II) ions from aqueous solutions. We examined how the initial metal concentration, flow rate, and bed height affected the adsorption characteristics.

Assessment of water quality and ecosystem health of a canal system during the lockdown period.

The impacts of the lockdown period on water quality and ecosystem health in an artificial canal water system were investigated from the rapidly growing Kozhikode City in India. The ecosystem health is measured in terms of water quality indicators such as pH, electrical conductivity (EC), dissolved oxygen (DO), biological oxygen demand (BOD) and () during the pre-lockdown and lockdown period. The study reveals the massive improvement of the ecosystem health of the canal in terms of DO, BOD, and during the lockdown period.

Water quality assessment of Kavvayi Lake of northern Kerala, India using CCME water quality index and biological water quality criteria.

Assessment of water quality status of 7 sites of Kavvayi Wetland in northern Kerala (India) was carried out. The physico-chemical, bacteriological and biological parameters were monitored during pre-monsoon, monsoon and post-monsoon seasons. Canadian Council of Ministers of the Environment (CCME) water quality index of the Kavvayi Lake samples ranged from 43.

Assessment and rationalization of water quality monitoring network: a multivariate statistical approach to the Kabbini River (India).

Unlabelled: The establishment of an efficient surface water quality monitoring (WQM) network is a critical component in the assessment, restoration and protection of river water quality. A periodic evaluation of monitoring network is mandatory to ensure effective data collection and possible redesigning of existing network in a river catchment. In this study, the efficacy and appropriateness of existing water quality monitoring network in the Kabbini River basin of Kerala, India is presented.

Characteristics of Aedes (Stegomyia) albopictus Skuse (Diptera:Culicidae) breeding sites.

We investigated the physicochemical characteristics of Aedes albopictus Skuse viz. breeding sites, by examining coconut shells, tires and plastic containers in a chikungunya affected area of Calicut, India. The study design was a cross-sectional ecological type.

Ecotoxicological impact assessment of heavy metals in core sediments of a tropical estuary.

Down core variation of heavy metals in three sediment cores from Cochin estuary was studied. The average concentration of iron, manganese, nickel, copper, zinc, cadmium, lead and mercury in each slices of sediment was determined. Quality of the sediments were evaluated based on sediment quality guidelines, pollution load index, and sum of toxic units and with effect range low/effect range median and threshold effect level/probable effect level values of environmental protection agency guidelines.