Case study TextiledyeingWastewater
Start Up January2016
LTX MILL 2 is a TORAY factory which is located in Bangkok Thailand, this factory’s main products are the synthetic textile, the amount of daily discharge is about 9600m3, and main component of the wastewater is Textile dyeing Wastewater,the characteristicsas below:
The high content of the organic pollutants, and the organic matter is difficult to degrade. B/C ratio is lower, only about 0.3, biodegradability is poor.
These high chroma, sometimes as high as 4000 or more.
The alkalinity and pH value changed varied, and the water quality changed violently.
The existing plant major process is Anaerobic+Aerobic (Active Sludge) biological treatment technology, after more than ten years of operation, equipment obsolescence, unstable operation, it is difficult to promote the local discharge criteria.According to owner’s requirements, upgrade the exisiting plant, Improve the stability of effluent quality. To solve the problem of activated sludge bulking.
The Inlet and outlet values of the biological treatment system as follows：
Upgrated the exisiting front active sludge tank to MBBR process，adding a certain number of BioCell media to the reactor，increase the capacity and the reinforcing of impcat for the system.
Effluent COD were well removed; the settling performance of activated sludge was greatly improved.
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