Heavy metals in the process of wastes utilization in the system: settling of sewage – ground – plants

[leuzea]

The technology of utilization of sewage sludge of pulp and paper mills (activated sludge), tested in practice and not allowing the cumulation of heavy metals (mercury, cadmium, lead, zinc, copper) in plant products grown on soils using large doses of activated sludge is described. Rapidly growing non-traditional crops are cultivated on poor agricultural land. They are cold tolerant, able to assimilate high levels of nutrients over a long growing season. Phytomass in late autumn wraps himself in the soil, which further increases its buffer capacity and does not allow for bioaccumulation of heavy metals in cleaning productsTimofeev N.P. Heavy metals in the process of wastes utilization in the system: settling of sewage – ground – plants / Problems of Today in Bioindication and Biomonitoring: Abstracts XI International Symposium on Bioindicators. Syktyvkar, Komi Scientific Center Ural Branch of RAS, 2001. – P. 372-373. Заголовок автора: Technology of utilization of sewage sludge of pulp and paper mills | Технология утилизации осадков сточных вод целлюлозно-бумажных комбинатов Ключевые слова: целлюлозно-бумажные комбинаты; осадки сточных вод; активный ил; улучшение почв; тяжелые металлы; аккумуляция; утилизация; компост; органическое вещество; посев; нетрадиционные растения; продуктивность; экологическая безопасностьKeywords: pulp and paper mills; sewage sludge; activated sludge; soil improvement; heavy metals; accumulation; utilization; compost; organic matter; sowing; non-traditional plants; productivity; environmental safety;

 

Читать дальше