Control of Odor from Wood Fibre Production in Iran
Wood fiber industries are producing large amount of wastewater, which are discharged to the environment everyday. The wastewater has entail of chronic toxicity, oxygen deficiency, and so on in receiving water bodies. These wastewaters are high in suspended solids and COD. They also have some color and the level of sulfate is high in these wastewaters.
The wastewaters from wood industries are considered as one of the most pollutant wastewaters, which are required to be treated before discharging to the environment. An important fraction of the raw material and large amount of chemical used in these industries were discharged to the receiving waters and destroyed the natural aquatic environment.
Lack of proper management in the company resulted in dispersion of offensive odors in the cities within 10 km from the factory. In addition, improper wastewater treatment system causes odor problems in the area.
Deep investigation of the sources of odors has been carried over the last year in the plant site. Many managerial actions have been taken to minimize the production of odors in the plant. Corrective action plan from the results of laboratory scale experiments have been taken place on the site. Results have been shown that the odor problem was completely solved.
In this paper the main problems of Iran Wood Fiber Company is first discussed. After formulizing the problems, the corrective action management steps are then summarized. Results of laboratory case study are given in the third part. Action plans in controlling of the odor from the wastewater treatment system are discussed in the final section.
Keywords: odor, wastewater, wood fiber