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STA on Detergo

May 27, 2021

STA: Industrial Laundries Wastewater Treatment as an Occupation

From the Detergo magazine, n. May 2021
 
Detergo, since 1952, is the reference magazine for the world of laundry and textile maintenance, which is aimed at all experts in the textile cleaning and maintenance sector, offering informative content and insights.
STA on Detergo
"STA, a leader of the sector for more than twenty years, based in Mantova, employing 160 professional figures, is a consolidated business thanks to the know-how of the associated founders specialized in wastewater treatment, primary water and rainwater treatments. The members of staff include engineers and technicians specialized in the design, realization and the adaptation of plants with the objective of obtaining the best solution at a technical and economical level for every customer. What is more, the company is qualified in technical, operative and analytical management, which makes it an ideal partner for all the business activities that deal with wastewater, and that need to rely on competent professionals as far as its management goes. The customers that choose STA, will acquire optimal performances and the optimization of the running costs in compliance with the current regulations. Industrial laundry wastewater reveals some specific issues that need to be considered, especially when it comes to linen treatment, which is the main aspect to consider when starting a correctly designed project. An accurate analysis, which is actually STA’s method postulate, focuses on: the characteristics of the water to treat, work settings and the available space for the construction of the plant. Laundry wastewater is generally treated by biological plants with the use of classic activated sludge or by sequencing batch reactors (SBR) where the process takes place in a single tank offering the right flexibility in terms of workload type and the resistance to the load leaps linked to each production stage. The project can include a pre-treatment stage called MBBR (Moving Bed Biofilm Reactor), that takes advantage of the grouping ability of filling bodies allowing to increase the treatment process within the same volume. The installation of a filtering membrane compartment (MBR) with the maximum filtration capacity to obtain high quality effluent is useful in water reuse."

"Study Case"

"An installed plant at an industrial laundry in the area of Brescia. The examination of the treated garments type and of the discharged water as well as the concentration of the main polluting agents (COD and total surfactants) were decisive in meeting specific necessities: we realized an automated plant for sewer discharge, turnkey, biological with traditional active sludge system containing: the accumulation of the factory water, fine screening, equalization, biological reactor, final separator, sludge line."

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