№5|2020

ЗА РУБЕЖОМ

DOI 10.35776/MNP.2020.05.10
УДК 628.169

Кофман В. Я.

Водопроводные осадки: состав, свойства, утилизация при очистке сточных вод (обзор)

Аннотация

Современные схемы водоподготовки неизбежно связаны с образованием водопроводных осадков, объем которых становится самостоятельной проблемой, а ее масштаб сопоставим с масштабом собственно производства питьевой воды. В этой связи утилизация водопроводных осадков рассматривается на сегодняшней день в качестве приоритетного направления разработок в данной области. По результатам практически тридцатилетних исследований обозначились основные области потенциального применения водопроводных осадков, одной из которых является очистка воды и сточных вод. Результаты многочисленных исследований свидетельствуют о перспективности использования водопроводных осадков в качестве адсорбентов фосфатов, мышьяка, а также тяжелых металлов: Cu, Cd, Cr, Co, Pb, Hg, Zn, Ni, V, Mo, Ga и Se. В условиях пилотных и опытно-промышленных испытаний проведены исследования по извлечению из водопроводных осадков коагулянтов и непосредственному использованию водопроводных осадков в качестве коагулянтов, а также их применению для улучшения показателей обезвоживания избыточного активного ила сточных вод. Получены хорошие результаты использования водопроводных осадков в составе основания биоинженерных сооружений, а также в качестве катализаторов активации персульфата и пероксомоносульфата в процессах деструкции органических микрозагрязнений в водной среде.

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