System and method for the renovation of process water

A process water and treatment unit technology, applied in chemical instruments and methods, processing wastewater treatment, processing waste paper, etc., to achieve the effect of optimizing efficiency

Active Publication Date: 2009-01-07
梅里造纸业去污技术有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the amount of recirculation is limited on the one hand by the hydrauli

Method used

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  • System and method for the renovation of process water
  • System and method for the renovation of process water
  • System and method for the renovation of process water

Examples

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Embodiment Construction

[0040] The system shown in FIG. 1 includes a recovered paper processing device 100 and a paper machine 200 arranged downstream of the recovered paper processing device 100 and connected thereto. In this regard, recovered paper processing apparatus 100 comprises two substantially mutually separated stages or loops 101a and 101b and are shown in FIG. 1 by dotted line boxes.

[0041] The first stage 101a of the paper processing plant 100 comprises a raw material inlet 102, a pulper 105, a sorting device 110a and a dewatering unit 115a, arranged in sequence and connected to each other. For the purposes of the present invention, a pulper 105 is not only to be understood as a device composed of plant parts, as shown schematically in FIG. And it contains all the components or units needed for pulping. The same applies to the sorting device 110a, the dewatering unit 115a and all other components shown in FIG. 1 .

[0042] The pulper 105 and the sorting device 110a are each connected...

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PUM

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Abstract

Disclosed is a system for renovating process water, especially during the production of paper. Said system comprises at least one process water renovation unit, at least one of which is provided with an anaerobic reactor spiked with anaerobic microorganisms as well as a lime elimination unit. Also disclosed is a method for renovating process water, particularly during the production of paper, which encompasses at least one process water renovation step in which at least some of the process water continuously delivered to the process water renovation step is subjected to a purification step in an anaerobic reactor that is spiked with anaerobic microorganisms and to a deliming step.

Description

technical field [0001] The invention relates to a system for treating process water, in particular in a papermaking process, wherein the system comprises at least one process water treatment unit. The invention further relates to a method for treating process water, in particular for treating process water in a papermaking process. Background technique [0002] The treatment of process water is especially necessary in many technical field situations where the process water is conducted in circuits in corresponding systems in order to prevent the process water from becoming enriched with interfering substances. It also finds particular application in process water in papermaking, in fact in papermaking from virgin fiber, and especially in papermaking from recycled paper. [0003] Over the past few decades, more and more paper is being obtained from recycled paper in order to reduce the energy consumption of the papermaking process, especially to reduce the consumption of nat...

Claims

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Application Information

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IPC IPC(8): C02F3/28C02F103/28
CPCD21C11/00C02F1/52D21C5/02C02F9/00C02F3/286C02F1/001C02F3/12Y10S210/928C02F2103/28C02F1/24Y02W10/10Y02W30/64C02F3/28
Inventor 卢卡斯·门克乔治·特鲁布尼斯
Owner 梅里造纸业去污技术有限责任公司
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