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The decomposition rate of Potamogeton crispus and its rates of phosphorus (P) release and sedimentation were quantified during natural senescence in a microcosm experiment. The decay of P. crispus was characterized by an exponential model with a mean mass loss coefficient (k) of 0.05 day−1. During the first 10 days, the rapid decomposition phase, k was 0.068 day−1. The rates of P release and total...
Ciprofloxacin (CPFX) and enrofloxacin (ENFX) are 2 representatives of widely used fluoroquinolones (FQs) with many human and veterinary applications. The residues of FQs in the environment are potentially harmful. Recently, great concern has been paid to their persistence and fate in the environment because of the potential adverse effects on humans and ecosystem functions. In the present study, we...
He seven-step sequential extraction of the WuHe Wetland different sections phosphorus samples analyzed various forms of phosphorus content in different sections. The results showed that: the average content of WuHe Wetland various forms of phosphorus in sediments showed Fe-P (1509.91mg · kg−1)> De-P (827.49mg · kg−1)> Ca-P (144.76mg · kg−1)> Oc-P (185.45mg · kg−1)> Ex-P (22.86mg · kg−1)>...
Regard the section of Beng River Bridge to E-Hunag road as the main research object, survey the three metals (Cd,Hg, Pb) in the river sediments.Potential ecological risk index and the geoaccumulation index (Igeo) were used to evaluate the ecological harm. The results showed that:The average content of heavy metals in sediments in the order of : Pb(21.06 mg·kg−1)>Hg(18.64 mg·kg−1)>Cr(2.51 mg·kg−1),...
The primary treatment of waste water received from the Beng River in the city of Linyi, Shandong, China has been studied. Collecting samples from the water of Beng River acted by PAC flocculant FeCl3 and water treatment then, through experiments measured in water samples after the ammonia Nitrogen and soluble Phosphorus concentrations, pH and turbidity of the water sample, we reached the results which...
Rhizobox experiment was conducted to investigate the influence of goethite and manganite boron-containing oxides on soil properties. The soil was treated with goethite, manganite and their boron-containing oxides including iron oxide with adsorbed boron (i.e. ad-B-goethite), iron oxide with occluded boron (i.e. oc-B-goethite), manganese oxide with adsorbed boron (i.e. ad-B-manganite) and manganese...
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