Комплексные решения HUBER для очистки стоков и обработки осадков ЦБП

  • Комплексные решения для каждого проекта индивидуально
  • Многолетний опыт в промышленной очистке вод
  • Надёжное оборудование
  • Представлена по всему миру

В целлюлозно-бумажной промышленности для различных производственных процессов требуется большое количество чистой воды, которую затем необходимо подвергнуть очистке. Этот объёмный сток не только обуславливает значительные платежи за водоснабжение и водоотведение, но и оказывает существенное негативное влияние на окружающую среду.

В связи с этим представляется целесообразным производить очистку и подготовку сточных вод для их повторного использования в производственных процессах.:

  • Отделение твердых веществ
  • Извлечение волокон
  • Отделение песка и обработка
  • Подготовка технической воды
  • Биологическая очистка воды
  • Обработка осадка

WięcejZamknij

Pulp and paper mills consume much water and generate much wastewater; both generate environmental stress. It is even cost-effective to treat the wastewater such that it can be recycled as process water. In this way, both water supply and wastewater discharge costs are minimized.

Disposal of removed solids and sludge becomes ever more costly. Retained paper fibres can be recycled into the production. Removed sludge is dewatered and disposed of, e.g. by incineration as solid waste.

Precondition for any customized solution is thorough investigation of the specific conditions.

HUBER is your experienced, reliable partner for such concepts and solutions and will develop them in cooperation with its customers. The final design and process will combine the reliability of well-proven HUBER products coupled with intelligent and innovative engineering and technical solutions.

Systems concept

Systems concept

Click on the image to get a detailed, interactive view with additional information and links.
Click on the image to get a detailed, interactive view with additional information and links.

Process

Process

Surface water for use as process water flows through a HUBER Multi-Rake Bar Screen RakeMax® that removes debris and other disturbing solids. The screenings are washed, dewatered and compacted in our HUBER Wash Press WAP®.

Wastewater from lumberyards contains solids, such as wood chips, that we remove with our HUBER Fine Screen ROTAMAT® Ro1. The screen simultaneously washes, dewaters and compacts the screening, so that they can be incinerated as solid waste. Then we remove soil, sand and grit with a HUBER Circular Grit Chamber HRSF and separate mineral and organic solids in our HUBER Grit Washer RoSF4. The washed and dewatered sand and grit is reusable as construction material.

Wastewater from the production that is highly polluted with organics flows for mechanical pre-treatment through our HUBER Rotary Drum Screen with rotating wedge wire. This screen usually has a wedge wire spacing of 1 mm.

Wastewater from the production that contains many fibres is pumped through our HUBER Rotary Drum Screen RoMesh®. This screen is made of a wire mesh with a mesh size between 0.2 and 1 mm. After chemical conditioning we remove remaining very fine fibres and other solids in a HUBER Dissolved Air Flotation Plant HDF (DAF). The DAF effluent can be discharged into the municipal sewer.

For further full-biological treatment we provide a HUBER Membrane Filtration VRM® Bio-Reactor. Its effluent can be directly discharged into receiving waters. The permeate effluent is of outstanding, contains neither solids nor bacteria, and can be recycled as process water.

Fibre sludge from the production and fibre-containing flotate sludge (primary sludge) are dewatered in our HUBER Screw Press and then recycled back into the production. Waste activated sludge (secondary sludge), consisting of biomass generated by biological treatment, is dewatered in another Screw Press. This sludge cake is preferably supplied to a biogas plant, in order to increase its gas production.

When we implement our solutions, we also provide our well-proven HUBER stainless steel components, e.g. Screw Conveyors, Manhole Covers and Stairways, Platforms and Guardrails.

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