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  • 首頁 環境時評人與自然最新動態焦點追蹤法律法規環境評價環保產業國內新聞國際新聞環境知識

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    以創新技術走在環保的前沿,致力綠色產品研發

    來源:網絡整理 人氣:次瀏覽 發布時間:2019-06-13

    以創新技術走在環保的前沿,致力綠色產品研發

    2019年已經過去了三分之一,但對于國內的制裘企業來說,2019年的第一季度似乎并不樂觀,從剛剛過去的4個月來看,制裘行業仍然沒有逃脫環保調控、政策施壓、人工及原材料成本上漲在內的各種因素所帶來的負面影響,2018年累積的重重壓力并未得到釋放。而在所有困擾制裘企業的因素中,來自國家層面的環保政策緊縮毋庸置疑地成為了廣大業內人士最為關注的熱點。幾乎遍布我國主要制裘產業集散地的環保督查、多部已于2018年正式生效的重量級環保文件、愈發頻繁的整治、停工限產……,所有這一切讓仍奮斗在制裘行業中的企業如履薄冰。

    根據要求,現在的制裘企業不但要做到各類廢水分類收集、分類處理,為了避免交叉污染,還從密閉性和操作穩定性等多個方面進行考慮,對傳輸污水的管道進行重新設計。這對于任何一個企業來說工程量都相當可觀。然而,如今的環保對于制裘企業來說,已經不僅僅局限在污水治理方面。在毛皮加工過程中,每加工1噸原料皮會產生200~300kg的固體廢棄物。據粗略估算,我國每年產生的制裘固體廢棄物為200萬噸,其中含鉻固體廢棄物為50多萬噸。伴隨著鉻泥、含鉻皮革廢碎料、廢堿液等3項制革行業廢物被列入《國家危險廢物名錄》,制裘企業的環保成本再度上升。

    “加強生態環境保護,建設美麗中國”黨的十九大把生態文明建設和生態環境保護提升到前所未有的戰略高度。由此可見,在接下來的很長一段時間里,國家環保政策將持續緊縮。那么,有著悠久歷史的制裘行業難道真的要帶著“固液雙廢”的枷鎖艱難前行下去嗎?2016年12月,西部地區某皮草公司羊皮生產線實現了KASTANO DC(白色易鞣體系)在制裘大生產中的應用,并在接下來的幾年中實現了該工藝的穩定運行。作為國內首個投入大生產使用的KASTANO DC(白色易鞣體系)生產工藝,該工藝在大生產中的投產使用不僅有效地解決了制裘企業傳統生產工藝所產生的固體、液體含鉻廢棄物的達標治理排放技術難題,更將成品革的物化性能指標提升到了傳統鉻鞣皮革的質量水平。

    從目前該工藝在我們實際大生產中的應用效果來看,最為直觀的效果如下:一是削勻工序產生的含鉻皮革碎料大幅度減少,二是含鉻廢水大幅度減少,有效控制含鉻污水排放減少80%以上,三是含鉻污泥減少,這有效地降低了我們企業的生產成本和環保成本。西部地區某皮草公司總經理認為KASTANO DC(白色易鞣體系)生產工藝是對傳統制裘工藝的一次重要的轉型升級,從根源入手,解決制裘行業的環保問題,化被動治理為主動革新,這才是制裘企業未來的出路。

    在制裘工藝中,鞣革材料、鞣制過程、鞣制效果對最終制革產品的穩定性能的影響十分重要。鉻鞣法鞣制的成革耐濕熱穩定性高,耐撓曲性、耐水洗性強,手感柔軟而有彈性等,成品革具有其他鞣法無法比擬的優良性能。故自從其問世以來,歷經百年發展卻沒有被其他任何一種鞣劑在成品革的綜合性能所替代,長久不衰。但是,由于鉻鞣法對鉻的利用率不高,有30-50%的鉻無法被皮革吸收和利用,隨著污水排出。以致污水中殘留大量三價鉻,而三價鉻則會慢慢被氧化成有致癌性的六價鉻,嚴重影響人類的健康,造成嚴重的環境污染。

    針對上述情況,北京恒普科技有限責任公司通過多年努力,數百萬資金投入,與知名科研機構合作開發的一種新型有機聚合物,合成的有機聚合物類皮革鞣劑具有多種官能團,相對于現有的鞣劑,可與皮膠原纖維上的相關基團形成更多的不可逆共價鍵結合成其他結合方式,在分子設計時考慮到該類鞣劑可被生物降解,因此,有機聚合物鞣劑有望代替鉻鞣劑成為新一代“綠色”環保型毛皮主鞣劑——凱斯白鞣劑KASTANO DC。使用凱斯白鞣劑KASTANO DC鞣制所得坯革可保持長久的白色,具有良好的物理性能,耐霉菌性和耐光性優異,同時具有與白濕革同等的染色特性,染出的彩色皮革顏色十分鮮艷、亮麗。

    凱斯白鞣劑KASTANO DC主要是其具有如下特點:1. 成革性能接近鉻鞣革;2. 符合環保要求,不引入新的有毒、有害物質;3. 適用于不同類型皮革的生產;4. 制革工藝與鉻鞣工藝相比,變化不是太大,易于工業推廣;5. 經濟上具有可行性;6. 皮革色調淺淡。 此外,凱斯白鞣劑KASTANO DC已經通過第三方專業測試的檢測,不含有六價鉻等其他有害物質。檢測結果見下圖:

    以創新技術走在環保的前沿,致力綠色產品研發

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