This year’s tasks include the updating, maintenance and expansion of the VOC database, checking of legal compliance on VOCs, follow-up and rechecking of odor complaint cases, checking of VOCs pollution reduction and improvement, auditing tests, paper review on new gas stations, function checking and propaganda of vapor recovery facility at gas stations. During the execution period, the EPA, EPB and many experts offered counsels and suggestions, making the tasks carried out as scheduled. The table below lists the executive summary of the Project’s tasks, the contents and detailed results of each of which are elaborated in the sections of this report.
I. Updating, maintenance and expansion of the database for VOCs
A. The operation updated and checked the documents at 102 organizations during 2010/11/12-2011/12/31 and grasped the use of MIR in 86 processes at 78 organizations, where toluene and xylene were most widely used, in 496.674 ton by 51 firms and 67.593 ton by 24 firms, respectively.
B. After the inspection worked on 102 companies, the emission amount of particulate pollutants were 273.23 tons/year, sulfur oxides were 1,258.12 tons/year, nitrogen oxides were 2,734.38 tons/year, and volatile organic compounds (VOCs) were 1,072.32 tons/year.
II. Industries laws and regulations degree of conformity inspection and control on volatile organic compounds
A. For industrial compliance with the laws (e.g., PU leather factory, petrochemical plant, dry laundry, semiconductor plant, automotive surface coating shop and tape factory), 37 firms were checked. Among these, the Tianzhong plant of He Fa has suspended work and the remainders were found to comply with the laws. For gas station legal compliance, 170 stations were checked (Renhao Gas Station applied for suspension on 2011/08/30), of which seven were noncompliant, but all noncompliance was improved.
III. Functional test of NMHC, ducts or peripheral odors, or air pollutants tests and petrochemical process equipment components tests
A. For NMHC flue inspection, 10 tests were made at six firms; Paper Fabric Enterprises, Chi Wei#1 plant, Yem Chio and Sun Home Leather received control facility efficiency test, Changhua plant of Formosa Motors and Changhua plant of Siliconware Precision Industries received single industry emission standard test. The test results all proved compliant with the approved efficiency or the regulations on emission standards for the industry.
B. In functional test of ducts or peripheral odors or air pollutants tests, 11 tests of air pollutants in emission ducts (PSN, toluene and flue odor) and 9 functional tests were conducted, resulting in a total of 20 tests. In emission of flue particles, Long Chen Paper was found with exceeding the mandate criteria, in flue odor test, Ti Kang Bitumen was noncompliant with the standards for emission and in sensual test, Tung Yi was noncompliant with the standards for emission; the noncompliance has all been dealt with and improvement completed.
C. In component sampling test on petrochemical processing equipment, a total of 10,100 point-time was conducted at 27 firms; #2 plant of Shi Quan Paints was found with component concentration reaching the value for definition of leaking (2,000ppm) at five point-time; the remainders were all found to comply with the emission standards.
D. Component envelopment test on petrochemical processing equipment was conducted five samplings at En Chuan, Full-Spring, Formosa Chemicals & Fibre Corporation and the Blending plant of Formosa Plastics; the test results had the envelopment test coefficients/emissions all below the current measurement in force.
IV. Follow-up and reexamination of complaints of odors
A. For follow-up and rechecking of odor complaint cases, 25 organization-time were conducted; Liang Ya, Yeong Fu Rubber, Formosa Chemicals & Fibre Corporation, Cheng Shin Rubber, Chi Yi, Heng Lung and Ti Kang Bitumen were undergoing partial pollution improvement, which included the methods of setting up gas collecting equipment to increase the efficiency in collection, setting up controlling equipment and elevating the emission flues. At the 25 organizations, the number of complaints received decreased by 230 times from 418 cases in Jan.-Sept. 2010 to 188 in Jan.-Sept. 2011.
V. Checking of VOCs pollution reduction and improvement
A. On VOC pollution reduction and improvement, ten firms, namely, Yu Great Industrial, Kao Pei, Yeong Fu Rubber, Paper Fabric Enterprises, Liang Ya, Gan Che, #2 plant of Shi Quan, Goodlot Enterprise, Cheng Shen Metallograthics And Canning and Merida, made improvement by incorporating additional gas collectors, controlling equipment, process halt and process improvement. Combined, the reduction was 67.25 ton.
VI. Tests and control of air pollutants emission at gas station
A. In vapor recovery facility function check at 92 gas stations, compliance rate with vapor-oil ratio was at average 92.7% and that with gas leakage test was 94.5%. Of 12 stations under auditing check, Wuyu, Fangyuan, Yuantian and Xiangshan Gas stations failed to pass and completed improvement after punishment. A total of 87 guns at 22 stations received vapor-oil ratio re-inspection without pre-notice given after failing to pass and timeframe for improvement was given; these all complied at the re-inspection. In emission reduction of gas station, VOC emission decreased by 39.4 ton/year (2010 Nov.-2011 Sept.)
B. Completed the first stage of review of set-up of new Mingxing Gas Station on 2011/02/17.
C. The flame ionization detector (FID) inspection on gas station checked for 373 times at ten stations, of which nine times at five stations were found with reaching the definition of leakage (1,000ppm), with the remainders not reaching. Required the components with concentration higher than 1,000ppm to improve; total reduction was 0.69 ton.
VII. Other related operations
A. Held two presentations, the “Presentation of controlling laws and control techniques on odors at stationery polluting source” and “Propaganda for regulations and equipment maintenance training on vapor recovery at gas stations”. The number of attendants at these presentations all met the provision of the contract.
B. Assisted EPB in publishing “Air polluting actions at gas stations in Changhua County” on 2011/04/22 and, subsequently, carried out inspection 80 station-time.
