Fuzzy Comprehensive Evaluation for Safety Guarantee System of Reclaimed Water Quality

Two-steps fuzzy comprehensive evaluation model was constructed by developing evaluating indicators system on guarding quality safety of reclaimed water and weighting evaluating indicators with analytic hierarchy process(AHP). By employing the fuzzy comprehensive evaluation model to reclaimed water demonstrate base in Liantang of Shenzhen, the following results were acquired: when calculating weights of evaluating indicators, AHP displays these virtues, such as independence of evaluation personnel's diathesis, authority and ability, possessing scientific test methods and having tiny error; further, safety guarantee system is comprehensively appraised with fuzzy comprehensive evaluation model combining qualitative appraisal with quantitative appraisal, so it avoids subjective arbitrariness and is coincident to actual circs.