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龙璋纸业公司 渗滤液渗漏整改初见成效

2017-08-25 08:16:23   中国青年网

8月24日,重庆龙璋纸业有限公司,工人正在清运遗留的废渣。记者 熊明 摄

位于铜梁区虎峰镇的重庆龙璋纸业有限公司,已停产近6年。

记者8月24日来到其厂区时发现,该公司正采取一系列措施来解决停产后遗留的造纸废渣、废液所造成的环境安全隐患。

白泥渣场渗滤液截流收集处理,实现达标排放

1999年,前身为重庆造纸厂的龙璋纸业公司因环保问题由江北区搬迁至现址,并进行了技术改造,同时配套了污水处理厂及白泥渣场,主要生产漂白硫酸盐竹浆及文化纸。

然而,由于市场不景气及造纸过程中产生废渣、废液污染等问题,龙璋纸业公司于2011年12月全面停产。

停产后,在龙璋纸业公司总面积超过300亩的厂区内,遗留了大量造纸设备。此外,在厂区外,还有一个容积近30万立方米的白泥渣场。

据了解,该公司停产后,无论是厂区还是白泥渣场都处于无人管护状态,致使白泥渣场外两条泄洪沟部分塌陷,失去排水泄洪作用,雨水、山洪直接流入渣场内部,形成黑水后渗漏,对周边山沟及小安溪河造成了污染。

去年11月29日,中央第五环境保护督察组到龙璋纸业公司进行现场督察,要求对白泥渣场渗滤液渗漏问题抓紧处理并达标排放。

今年4月12日,中央第五环境保护督察组在向我市反馈意见时再次提出龙璋纸业公司白泥渣场渗滤液未经处理直排小安溪河的问题。

据龙璋纸业公司总经理李兴奎介绍,按中央环境保护督察组要求,龙璋纸业公司于去年12月开始建设日处理渗滤液160立方米的白泥渣场渗滤液处理站,并于今年5月投入运行,将白泥渣场渗滤液截流收集处理后达标排放。

48个制浆储罐中的黑液和废渣已清理22个

除了白泥渣场渗滤液,在龙璋纸业公司厂区内的48个制浆储罐中,还残留着近两万吨制浆原料黑液和制浆废渣。

铜梁区环保局行政执法支队副支队长白勇介绍,黑液和废渣中含有大量的悬浮性固体、有机污染物和有毒物质,直接排放到水体中会造成严重的污染。此外,黑液中大量存在的碱性物质会使水体的pH值急剧升高,破坏水体环境的平衡。

从6月下旬开始,龙璋纸业公司开始全面清理48个制浆储罐中的黑液和废渣,目前已经清理完成其中的22个。清理出的黑液和废渣则交由具有专业资质的第三方公司进行处理。

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