Flocculation of fine fluorite particles with Corynebacterium xerosis and commercial long chain polymers

Rigo, Lisandra Naiara; Pinto, Angela Maria; Denardin, N. D.; Schneider, Ivo

doi:10.1590/s1517-83822002000400010

Cited by 1 publication

(1 citation statement)

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“…Therefore, the selection of a flocculant for particular application is not based upon their chemical and physical composition. Instead, performance parameters (e.g., settling rate, residual turbidity, sediment volume of flocculant consumption) are used to characterize the quality or extent of flocculation achieved with a given flocculant [6]. Understanding the interaction between soil solution and PAM flocculant is important for optimizing flocculant performance.…”

Section: Introductionmentioning

confidence: 99%

Factors affecting flocculation performance of synthetic polymer for turbidity control

Kim¹,

Kim²,

Kim³

et al. 2013

JACEN

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A multilateral effort into managing nonpoint source pollution from agriculture has gotten much attention for many years. Particularly during the heavy rain season, runoff of turbid water from sloped farmlands, fallow ground and/or unmanaged uplands is deteriorated. Flocculant polymer, commonly used in wastewater treatment facilities, but now exploited to improve control of sediment turbidity by promoting flocculation of particles in construction site. This study used the flocculant polymer to control the discharge of agricultural nonpoint source pollution and fosed on the understanding of how soil-water and polymer properties affect flocculation performce. Therefore, a series of flocculation experi-nts under different conditions was evaluated for better polymer clarification efficiency. Various factors such as flocculant dose, end-over-end inversion of a cylinder, and soil-water properties (pH, NaCl, organic matter) were studied. The effective flocculant dose that fulfilled fast settling rate was 10mg•L −1. Additional findings included that 1) increasing pH decreased the settling rate of soil particle; 2) a positive relationship between the percentage of turbidity reduction and a level of salinity in Kaolin suspension was observed, and 3) organic matter in soil solution inhibited PAM adsorption onto soil particles, which caused the reduction of flocculation performance. The findings of this study revealed that flocculant polymer possess good results as a turbidity reducetion measure and could further provide valuable information to make better decision on establishment of Best Management Practice for handling agricultural nonpoint source pollution.

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Section: Introductionmentioning

confidence: 99%