Download Desalination Concentrate Management by Bradley Ladewig, Benjamin Asquith PDF

By Bradley Ladewig, Benjamin Asquith

This publication examines 5 equipment used for focus administration, particularly; disposal to floor water, disposal to sewerage, deep good injection, land purposes and evaporation ponds. specifically, the e-book specializes in the layout, siting, expense, and environmental affects of those equipment. whereas those equipment are commonly practiced in numerous settings already, there are lots of boundaries that limit using sure disposal concepts particularly locations.

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As a result of this, the well can be designed with larger than required diameters that allow for future increases in concentrate flow without greatly compromising the cost (Mickley 2006). Various forms of logging, surveying and testing are undertaken throughout the drilling process. These are used to determine the profile of the rock formations surrounding the well, to determine the compatibility of the concentrate in the injection zone, and to check the integrity of the well, casing, cementing and tubing.

2010). Larger concentrate volumes should avoid discharge into tidal zones to prevent the accumulation of salt in these areas (Voutchkov et al. 2010). The use of diffusers is far more common, which is a pipe or series of pipes with numerous discharge ports. These can be designed to meet mixing and dilution requirements based on the concentrate and the receiving water. A longer pipe with multiple ports increases dilution by spreading the discharge out over a wider area. To maintain a constant discharge flow along the pipe and to allow for a better dilution, the size of the discharge ports increases along the pipe as the pressure head decreases.

It has been estimated that benthic communities can withstand variations in salinity of ±1000 ppm (Del Bene et al. 1994). For most marine organisms that live in seawater, the salinity tolerance can be up to and potentially even greater than 40% of the average annual ambient ocean salinity concentration (Voutchkov et al. 2010). 2 Pretreatment Chemicals Any FRC that may be present in the concentrate is known to be toxic, and can have severe impacts on marine life. However, following dechlorination with sodium bisulfite, the level of free residual chlorine in the concentrate is often quite low, and quickly decreases after discharge as it dissipates and degrades (Lattemann and Höpner 2008).

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