Wu Wen-Lu, Shan Chun-Yan, Zhao Jing-Lin, Cui Yu-Nong
College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China.
Huan Jing Ke Xue. 2023 Nov 8;44(11):5924-5932. doi: 10.13227/j.hjkx.202212035.
Based on the air pollutant emission inventory of Jinan in 2020, the VOCs emission status and existing problems of typical industries including the chemical industry, industrial coating, printing, and furniture manufacturing were investigated and analyzed, and two emission reduction scenarios were designed to estimate the emission reduction potential according to the enterprise scales and the end-of-pipe treatment techniques. The results showed that the VOCs emissions of the typical industries from large to small were the chemical industry(7947.92 t), industrial coating(2383.29 t), printing(792.87 t), and furniture manufacturing(143.79 t). The chemical industry and industrial painting were dominated by large enterprises, accounting for 46.45% and 50.89% of VOCs emissions, whereas printing and furniture manufacturing were dominated by medium-sized enterprises, accounting for 51.76% and 42.37% of VOCs emissions, respectively. The end-of-pipe treatment was dominated by a single inefficient treatment technique, and the utilization rate of efficient treatment techniques such as combustion techniques and combination techniques was only 7.46%. The on-site investigation reported some problems in some enterprises, including incomplete source substitution, inadequate management of fugitive emissions, and unsuitable end-of-pipe treatment facilities. Therefore, VOCs emissions of typical industries had a certain reduction potential. Under the two designed emission reduction scenarios, the chemical industry had the greatest emission reduction potential, with emission reduction rates of 69.58%-84.99%, and the emission reduction rates of industrial coating, printing, and furniture manufacturing industries were 26.98%-34.74%, 36.96%-59.74%, and 8.55%-40.45%, respectively. Among the four industries, large and medium-sized enterprises had greater emission reduction potential, with average emission reduction rates of 70.00% and 44.23%, respectively. Under the scenario of a higher emission reduction target, the average emission reduction rates of small and micro enterprises were greatly increased, reaching 87.49% and 79.65%, respectively. The results of this study could provide scientific basis for developing VOCs governance in typical industries and enterprises.
基于济南市2020年空气污染物排放清单，对化工、工业涂装、印刷、家具制造等典型行业的挥发性有机物（VOCs）排放现状及存在问题进行了调查分析，并根据企业规模和末端治理技术设计了两种减排情景，以估算减排潜力。结果表明，典型行业VOCs排放量由大到小依次为化工行业（7947.92吨）、工业涂装（2383.29吨）、印刷（792.87吨）、家具制造（143.79吨）。化工行业和工业涂装以大企业为主，分别占VOCs排放量的46.45%和50.89%；而印刷和家具制造以中型企业为主，分别占VOCs排放量的51.76%和42.37%。末端治理以单一低效治理技术为主，燃烧技术、组合技术等高效治理技术利用率仅为7.46%。现场调查发现部分企业存在源头替代不彻底、无组织排放管理不到位、末端治理设施不合适等问题。因此，典型行业VOCs排放具有一定减排潜力。在设计的两种减排情景下，化工行业减排潜力最大，减排率为69.58% - 84.99%，工业涂装、印刷、家具制造行业减排率分别为26.98% - 34.74%、36.96% - 59.74%、8.55% - 40.45%。四个行业中，大中型企业减排潜力较大，平均减排率分别为70.00%和44.23%。在减排目标较高情景下，小微企业平均减排率大幅提高，分别达到87.49%和79.65%。本研究结果可为典型行业和企业开展VOCs治理提供科学依据。
