| 英文摘要 |
River patrolling, investigation of industrial units and illegal wastewater discharging pipes and emergency water pollution drill at Jia-yi city`s Niou-chou river and Ba-zhang river basin``. The project started at March 30th and finished at Dec. 31st of 2007. The abstract of this project is described as followed,
One. Water quality analysis:
For the year 2007, the water quality analysis suggested that the concentration for NH3-N at Niou-chou river basin worsened at Hua-sin bridge station. This is due to the increase of the NH3-N pollutant at the area from Niou-chou river bridge to hua-sin bridge stations; in addition, the northern district discharged its wastewater into this area. The water pollution index (RPI values) of all the water sampling stations along the river suggested that the water quality of Niou-chou river worsens at the lower reaches of the river body.
For the year 2007, the water quality analysis for Ba-zhang river basin suggested that the overall RPI value is higher at Jun-hui bridge station (RPI value of 4.75, moderate pollution). However, attention needs to be paid at the abnormally high concentrations of SS at Jun-hui bridge station at the month of Aug., Sept. and Oct..The central weather bureau at Jia-yi city showed that the total precipitation from the month of Aug. to Oct. reached 1,286.3 mm, which is 1.7 times higher than the total precipitation from Jan. to July. This explains the unusual high concentration of SS. Once the water quality improvement project is completed, the water pollution should improve. Overall, the water quality in Ba-chang river basin is better than Niou-chou river basin, the future water protection mechanism would ensure the water quality.
Two. Permit application and data compilation:
During the project year, 1431 file data were compiled; among them, the investigation records accounted for the highest number. In addition, the July’s semi-annual industrial declaration (89 cases in total) is compiled, and 26 cases of the water pollution protection plan and permit application are completed.
Three. Industrial pollution sources investigation and regulation:
Investigation and counselling were give to the regulated industrial units in jia-yi city. During the project year, 1116 cases were completed. Among the 90 regulated industrial units, the standards of the investigation categories (electronic meters, wastewater treatment specialists, discharge water meters, discharge displays and the operational status of the wastewater treatment facilities, etc.) were all within normal ranges. Our consulting team helped investigated 17 complaints by people and 10 cases by the river patrolling team. Special counselling was given to the pollution-involved industrial units.
As the results of water samplings, 201 cases were tested. Among them, 15 cases were outside of the standard ranges. The fail rate is at 13.4 %.
Four. Monitoring of illegal wastewater discharges and investigation of illegal discharging pipes:
Ten 24-hour water monitorings were scheduled to be completed within this project year. Water quality monitors were set up at some proper sites from May 10th to 14th and Oct. 17th to 21st. During the monitoring processes, suspicious water discharges were found at some ditches at Hou-hu industrial area, three industrial units at the upper river reach were three possible pollution sources, and they were also listed as the special investigating targets.
Five. Volunteer river patrolling teams:
For the operation of river patrolling teams, 6 teams (65 people in total) were organized. 4 educational trainings (385 people in total attended these trainings)and 5 river cleaning activities were accomplished within the project year. 5 river cleaning activities were held with more than 400 people participated.
Six. Other activities:
Two info. sessions regarding water protection regulations were scheduled within this project year. The first session focusing at car-washing industry was held at April 9th, and the second one targeting the newly regulated industrial units were held at May 22nd. The topics focused on the water protection regulations and the importance of permit renewal. 41 people participated at the first info. session and 107 for the second session.
Five info. sessions on the reduction of household water usage were scheduled and completed within the project year, 507 people in total participated. The info sessions focused on how to reduce the household water usage and the importance of regular cleaning of septic tanks.
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