Treatment of eutrophic lake water and phosphorus recovery by reusing alum sludge and/or wood

Takashima, Masanobu; Nakamura, Shigeaki; Takano, Morihiro; Ikemoto, Ryoko

doi:10.2166/wrd.2015.130

Cited by 1 publication

(1 citation statement)

References 9 publications

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“…4). First suggested by Young et al (1988), multiple recent studies have expanded on this idea (Wang et al 2012a;Wang et al 2013a;Takashima et al 2015;Yuan et al 2016a). The most common approach is to mix 10% WTRs by weight with lake sediments (Wang et al 2012a;Wang et al 2013a;Yuan et al 2016b); however, some studies have varied this amount, such as Yuan et al (2016a).…”

Section: Use In Lakes or Reservoirsmentioning

confidence: 99%

Potential Alternative Reuse Pathways for Water Treatment Residuals: Remaining Barriers and Questions—a Review

Turner

Wheeler²,

Stone³

et al. 2019

Water Air Soil Pollut

110

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Water treatment residuals (WTRs) are byproducts of the coagulation and flocculation phase of the drinking water treatment process that is employed in the vast majority of water treatment plants globally. Production of WTRs are liable to increase as clean drinking water becomes a standard resource. One of the largest disposal routes of these WTRs was via landfill, and the related disposal costs are a key driver behind the operational cost of the water treatment process. WTRs have many physical and chemical properties that lend them to potential positive reuse routes. Therefore, a large quantity of literature has been published on alternative reuse strategies. Existing or suggested alternative disposal routes for WTRs can be considered to fall within several categories: use as a pollutant and excess nutrient absorbent in soils and waters, bulk land application to agricultural soils, use in construction materials, and reuse through elemental recovery or as a wastewater coagulant. The main concerns and limitations restricting current and future beneficial uses of WTRs are discussed within. This includes those limitations linked to issues that have received much research attention such as perceived risks of undesirable phosphorous immobilisation and aluminium toxicity in soils, as well as areas that have received little coverage such as implications for terrestrial ecosystems following land application of WTRs.

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