Recycling Treated Municipal Wastewater for Industrial Water Use

Section 3
Inventory of Major WWTPs and Potential Industrial Reuse Demands
Craddock Consulting Engineers 3-3
In Association with CDM & James Crook
WWReuseTM1_Sec 3_final.doc
Table 3.1. Power Generation Facilities Water Use in Minnesota, 2004
Water Use, mgd
Category Ground Water Surface Water Total
Hydropower 0 0.12 0.1
Steam power cooling – once through 0.30 1178.75 1179.1
Steam power cooling – wet tower 0.98 18.47 19.5
Steam power other than cooling 1.36 325.35 326.7
Nuclear power plant 0.14 852.44 852.6
Power generation 0.85 0.01 0.9
Total 3.6 2375.0 2378.7
Source: MDNR, 2004
Mine processing and pulp and paper processing are the largest water users under the
industrial processing category, as listed in Table 3.2 and illustrated in Figures 3.3 and
3.4. While these industries predominantly use surface water supplies the next largest
water use category is agricultural processing, which relies primarily on higher quality
ground water supplies. Appendix A provides the detailed statistics on industrial
water use in Minnesota for 2000 – 2004.
Table 3.2. Industrial Processing Water Use in Minnesota, 2004
Water Use, mgd
Category
Ground
Water
Surface
Water
Total
Agricultural processing (food & livestock) 25.2 0.1 25.3
Pulp and paper processing 2.3 80.3 82.6
Mine processing (not sand & gravel washing) 0.5 296.5 297.0
Sand and gravel washing 3.8 7.5 11.3
Industrial process cooling once-through 5.8 0.5 6.3
Petroleum-chemical processing, ethanol 10.9 0.4 11.3
Metal processing 3.9 0.0 3.9
Non-metallic processing (rubber, plastic, glass) 3.0 0.0 3.0
Industrial processing 1.0 0.0 1.0
Total 56.3 385.4 441.7
Source: MDNR, 2004