推荐回答(3个)
污泥的处理一般有填埋、制肥、发电、制热等方法。填埋是把一些不可分离不可利用的物质进行土地深层填埋,让自然界通过长时间的物理和化学的处理进行分解;制肥是来利用污泥中的有机物,制成农用肥料使用;发电和制热时利用污泥的热解发酵,再发酵中产生热能和沼气。在这几种处理方法中,制肥是最经济划算的有效利用途径。使金宝贝肥料发酵剂将污泥制作生物有机肥,具有发酵快,发酵好,既能高温发酵,又能低温发酵,大大缩短制作时间,降低成本等特点,应用极其广泛,只要按操作进行,堆制几天就可以将污泥发酵成有机肥。
方法是:在污泥中加入适量粉碎好的秸秆、锯末、蘑菇渣、花生壳或稻壳等有机物料,再向其中放入适量金宝贝肥料发酵剂(1公斤金宝贝肥料发酵剂可发酵4吨左右的污泥)物料含水量在60~65%左右。在发酵的过程中要注意翻倒,一般7~10天就可使物料脱臭,发酵完成,可放心使用或出售。如锯末、木屑类辅料加入过多时,应延长发酵时间,待其充分腐熟。
污泥利用金宝贝肥料发酵剂进行无害化处理,可以减少臭味、降低水分、杀灭病原菌和寄生虫(卵),得到腐熟的污泥堆肥,将污泥堆肥烘干、粉碎,同时添加适量的化学肥料及有益微生物,可制成了有机复合肥料和生物型有机复合肥料。
生活污水处理厂产生生活污泥,各种工厂产生工业污泥,如印染废水污泥,电镀废水污泥,石油废水污泥等,还有河道疏浚挖出来的底泥。
通常污泥主要指生活污泥,处理技术很多
1.污泥处理利用的一般技术
(1)污泥的堆肥化处理技术
(2)污泥的建材化技术
(3)污泥的燃料化技术
(4)污泥的厌氧消化(制沼气)技术
2.污泥的电离辐射处理技术
3. 微波技术在污泥处理中的应用
(1)微波辐照污泥处理技术
(2)微波化学分析技术
4. 超声波处理污泥技术
5. 重金属的生物有效性及植物脱除技术
6. 污泥的微生物处理技术
(1) 微生物淋滤技术
(2) 微生物吸附处理法
(3) 微生物脱臭技术
7.新兴污泥热化学处理技术
(1) 湿式氧化技术
(2) 活性污泥作黏结剂
(3) 剩余污泥制可降解塑料
(4) 污泥制活性炭
(5) O3/H2O2氧化技术
(6) UV/O3氧化技术
(7) UV/H2O2氧化工艺
(8) 其他热化学处理技术
最常用的还是干化焚烧或者填埋,不过我国目前的生活污泥超过一半都没有处理,就简单丢弃了。
污泥无处不在(市政、印染、电镀、化工、江河湖泊的底泥······)
各种污泥都有其自身的特点,也有很多技术适用于这些污泥
根据处理的需求不同,所采用的技术也不同
挤压干化(80%含水),加热干化(30%含水),加螯合剂固化(稳定化重金属),焚烧(绝干且稳定化重金属)··············
所以无所谓最好的技术,只有最适用的技术
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