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Metropolitan Water Reclamation District of Greater Chicago(MWRD)°ú ½ÃÄ«°í ½Ã°¡ Æó¼ö°øÁ¤¿¡¼­ ¹ß»ýµÇ´Â ¹ÙÀÌ¿À È¥ÇÕ°íÇü¹°ÀÇ Áõ·®Á¦·Î½á ³ª¹« ÀÜÇظ¦ Àç»ç¿ëÇϱâ À§ÇØ ÃÖ±Ù Á¤ºÎ°£ Çù·ÂÀ» ü°áÇß´Ù°í ¹àÇû´Ù.

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Tree debris to be used as bulking agent to compost biosolids from wastewater in Chicago

An Intergovernmental Agreement has recently been established between the Metropolitan Water Reclamation District of Greater Chicago (MWRD) and the City of Chicago for the recycling of tree debris to be used as a bulking agent to compost biosolids generated by wastewater processing.

Wood chips created from Chicago tree debris will be mixed with the biosolids and then composted into an organic material for use as a substitute for fertilizer, compost and soil amendment. This material will be used for maintaining or establishing turf grass in parks, athletic fields and public access areas throughout Cook County.

As part of regular forestry operations of tree trimming and tree removal, the Department of Streets and Sanitation Bureau of Forestry produces a large and continuous supply of wood chips. These chips will be supplied to the MWRD's biosolids program at the Calumet Solids Management Area regularly, with the first delivery constituting 100 yards of wood chips.

Moreover, Chicago will provide the MWRD with approximately 150,000 yards of wood chips over the next three years. This Agreement allows the city to efficiently and effectively recycle wood chips for reuse in Chicago and the surrounding areas.

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