CN110143670A - 一种微藻hc-2处理奶牛养殖废水装置及方法 - Google Patents
一种微藻hc-2处理奶牛养殖废水装置及方法 Download PDFInfo
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Abstract
本发明公开一种微藻HC‑2处理奶牛养殖废水装置及方法,包括清水管道、沼液管道、低速离心机、沼液池、水泵、沼‑藻混合池、沼液暂存池、分流管、光生物反应器、回流管、回流池、收集池、清水池;所述反应池底部设有加热器,所述反应池外部设有LED灯带,所述回流池通过回流管与所述光生物反应器内最上层的反应池连通,所述反应池设有与收集池相连通的收集管,所述收集管上设有阀门,所述收集池通过管道与清水池连通。本发明能够提高微藻油脂产率,同时又可实现低成本且环保,并且对废水中总磷(TP)的去除率分别为71.16%,总氮(TN)的去除率分别为53.59%,化学需氧量(COD)的去除率分别为50.27%。
Description
技术领域
本发明涉及一种微藻HC-2处理奶牛养殖废水装置及方法。
背景技术
随着奶牛养殖业的快速发展,奶牛养殖废水大量产生,给附近生态环境和居民健康带来了严重危害。为了产业能够可持续发展,需要实现奶牛养殖废水的无害化、资源化和减量化处理,但如何降低微藻的培养成本是实现微藻燃料商业化发展的重中之重。近年来,能源危机已经成为阻碍我国经济可持续发展的主要瓶颈,为此,清洁可再生能源的开发已成为人们重点关注的课题。生物柴油作为一种潜在的清洁能源,越来越受到人类的关注。在生产生物能源方面,微藻具有的潜在价值越来越受到重视。微藻被称为“微型阳光驱动的生物化工厂”,能够在有机物和二氧化碳存在的情况下生产大量的脂质和碳氢化合物。
微藻能够利用养殖废水中富含的营养物质供自身生长从而降低废水中的营养物质,同时收获的大量微藻又可以用于生产生物柴油,缓解目前的能源危机。因此需要提供一种能够提高微藻油脂产率,同时又可实现低成本且环保的微藻养殖***。
发明内容
本发明主要是克服现有技术中的不足之处,提出一种微藻HC-2处理奶牛养殖废水装置及方法。
本发明解决上述技术问题所提供的技术方案是:一种微藻HC-2处理奶牛养殖废水装置,包括清水管道、沼液管道、低速离心机、沼液池、水泵、沼-藻混合池、沼液暂存池、分流管、光生物反应器、回流管、回流池、收集池、清水池;
所述光生物反应器内设有若干个纵向层叠的反应池,所述沼-藻混合池、沼液暂存池依次纵向层叠在光生物反应器上方,所述低速离心机通过沼液管道与沼液池连通,所述水泵通过清水管道与沼液暂存池连通,所述沼液池通过连通管与沼液暂存池连通,所述沼液暂存池底部通过管道与沼-藻混合池连通,所述沼-藻混合池底部通过分流管与所述光生物反应器内最上层的反应池连通;
所述反应池底部设有加热器,所述反应池外部设有LED灯带,所述回流池通过回流管与所述光生物反应器内最上层的反应池连通,所述反应池设有与收集池相连通的收集管,所述收集管上设有阀门,所述收集池通过管道与清水池连通。
进一步的技术方案是,所述沼-藻混合池、沼液暂存池内均设有搅拌装置。
进一步的技术方案是,所述搅拌装置为搅拌机。
进一步的技术方案是,所述清水管道、沼液管道上均设有流量计。
进一步的技术方案是,所述反应池底部设有曝气管,所述曝气管与CO2罐相连通,且曝气管上设有供气开关。
进一步的技术方案是,所述反应池为玻璃池或PVC池,其长×宽×高为0.4米×0.3米×0.23米。
一种微藻HC-2处理奶牛养殖废水的方法,包括以下步骤:
(1)将微藻藻种接种到装有培养液的锥形瓶中,放置于摇床上进行培养;
(2)废水通过沼液管道泵入到沼液池进行离心处理,从而去除固体物质;
(3)然后再泵入到沼液暂存池内,并通过清水管道向沼液暂存池内注入清水对离心后的废水进行10倍稀释;
(4)再将稀释后的废水和培养后的藻种放入沼液暂存池内进行混合,并加入3.0%海藻酸钠、3.5%氯化钙;
(5)将上述混合液注入到反应池进行培养,其中曝气管通入CO2提高微藻生长速度,提高沼液处理效率,以及通过回流管对反应池内的混合液进行循环净化;
(6)培养完成后,将混合液泵入到收集池内进行离心,分离出微藻进行重复使用,分离出的液体泵入到清水池内。
进一步的技术方案是,所述步骤中培养液包括浓度为20g/L的葡萄糖、浓度为1.2g/L的NaNO3、浓度为80mg/L的K2HPO4·3H2O、浓度为200mg/L的MgSO4·7H2O。
进一步的技术方案是,所述培养液的pH 7,光暗比18:6,光照强度4000LUX。
本发明具有益效果:本发明能够提高微藻油脂产率,同时又可实现低成本且环保,并且对废水中总磷(TP)的去除率分别为71.16%,总氮(TN)的去除率分别为53.59%,化学需氧量(COD)的去除率分别为50.27%。
附图说明
图1为本发明实施例的结构示意图;
图2为本发明实施例中反应池的内部结构示意图;
图3为本发明的流程图。
图中所示:1.加热器开关、2.清水管道、3.沼液管道、4.低速离心机、5.沼液池、6.水泵、7.沼-藻混合池、8.沼液暂存池、9.流量计、10.搅拌装置、11.加热器、12.LED灯带、13.曝气管、14.分流管、15.阀门、16.反应池、17.光生物反应器、18.回流管、19.供气开关、20.回流池、21.收集池、22.清水池。
具体实施方式
下面结合实施例和附图对本发明做更进一步的说明。
如图1和2所示,本发明的一种微藻HC-2处理奶牛养殖废水装置,包括清水管道2、沼液管道3、低速离心机4、沼液池5、水泵6、沼-藻混合池7、沼液暂存池8、分流管14、光生物反应器17、回流管18、回流池20、收集池21、清水池22;
所述光生物反应器17内设有若干个纵向层叠的反应池16,所述沼-藻混合池7、沼液暂存池8依次纵向层叠在光生物反应器17上方,所述低速离心机4通过沼液管道3与沼液池5连通,所述水泵6通过清水管道2与沼液暂存池8连通,所述沼液池5通过连通管与沼液暂存池8连通,所述沼液暂存池8底部通过管道与沼-藻混合池7连通,所述沼-藻混合池7底部通过分流管14与所述光生物反应器17内最上层的反应池16连通;
所述反应池16侧面靠底部2cm左右处开孔装加热器11及温控装置(控制水温20-28℃),其加热器11上设有加热器开关1,用于开闭加热器11,,所述反应池16外部设有LED灯带12,LED灯带12为冷光源型的LED灯带缠绕(注意防水,防漏电),并与光控装置相连,便于自然光不足时自动控制光源强度,所述回流池20通过回流管18与所述光生物反应器17内最上层的反应池16连通,所述反应池16设有与收集池21相连通的收集管,所述收集管上设有阀门15,所述收集池21通过管道与清水池22连通。
其中实施例中为了提高混合效果,优选的方式是如图1所示,所述沼-藻混合池7、沼液暂存池8内均设有搅拌装置10,所述搅拌装置10为搅拌机。
在进行处理时需要对废水进行10稀释,因此,所述清水管道2、沼液管道3上均设有流量计9。
所述反应池16底部设有曝气管,所述曝气管与CO2罐相连通,且曝气管上设有供气开关19,即微藻处理沼液过程中,通入并维持适当浓度CO2可提高微藻生长速度,提高沼液处理效率。可CO2罐通过并联PVC管直接从各光反应器上方深入到液面下20cm即可,CO2罐体连有流量表,能够观察、计算、调节供气量,所述反应池16为玻璃池或PVC池,其长×宽×高为0.4米×0.3米×0.23米。
一种微藻HC-2处理奶牛养殖废水的方法,使用权利要求1-6中任一项权利要求所述的一种微藻HC-2处理奶牛养殖废水装置,其特征在于,包括以下步骤:
(1)将微藻藻种接种到装有培养液的锥形瓶中,放置于摇床上进行培养;所述培养液包括浓度为20g/L的葡萄糖、浓度为1.2g/L的NaNO3、浓度为80mg/L的K2HPO4·3H2O、浓度为200mg/L的MgSO4·7H2O,所述培养液的温度27℃,pH 7,光暗比18:6,光照强度4000LUX;
(2)废水通过沼液管道3泵入到沼液池5进行离心处理,从而去除固体物质;
(3)然后再泵入到沼液暂存池8内,并通过清水管道2向沼液暂存池8内注入清水对离心后的废水进行10倍稀释;
(4)再将稀释后的废水和培养后的藻种放入沼液暂存池8内进行混合,并加入3.0%海藻酸钠、3.5%氯化钙,其中胶球直径为1.86mm、胶球投放量在1200个;
(5)将上述混合液注入到反应池16进行培养,其中曝气管通入CO2提高微藻生长速度,提高沼液处理效率,以及通过回流管18对反应池16内的混合液进行循环净化;
(6)培养完成后,将混合液泵入到收集池21内进行离心,分离出微藻进行重复使用,分离出的液体泵入到清水池22内。
以上所述,并非对本发明作任何形式上的限制,虽然本发明已通过上述实施例揭示,然而并非用以限定本发明,任何熟悉本专业的技术人员,在不脱离本发明技术方案范围内,当可利用上述揭示的技术内容作出些变动或修饰为等同变化的等效实施例,但凡是未脱离本发明技术方案的内容,依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰,均仍属于本发明技术方案的范围内。
Claims (9)
1.一种微藻HC-2处理奶牛养殖废水装置,其特征在于,包括清水管道(2)、沼液管道(3)、低速离心机(4)、沼液池(5)、水泵(6)、沼-藻混合池(7)、沼液暂存池(8)、分流管(14)、光生物反应器(17)、回流管(18)、回流池(20)、收集池(21)、清水池(22);
所述光生物反应器(17)内设有若干个纵向层叠的反应池(16),所述沼-藻混合池(7)、沼液暂存池(8)依次纵向层叠在光生物反应器(17)上方,所述低速离心机(4)通过沼液管道(3)与沼液池(5)连通,所述水泵(6)通过清水管道(2)与沼液暂存池(8)连通,所述沼液池(5)通过连通管与沼液暂存池(8)连通,所述沼液暂存池(8)底部通过管道与沼-藻混合池(7)连通,所述沼-藻混合池(7)底部通过分流管(14)与所述光生物反应器(17)内最上层的反应池(16)连通;
所述反应池(16)底部设有加热器(11),所述反应池(16)外部设有LED灯带(12),所述回流池(20)通过回流管(18)与所述光生物反应器(17)内最上层的反应池(16)连通,所述反应池(16)设有与收集池(21)相连通的收集管,所述收集管上设有阀门(15),所述收集池(21)通过管道与清水池(22)连通。
2.根据权利要求1所述的一种微藻HC-2处理奶牛养殖废水装置,其特征在于,所述沼-藻混合池(7)、沼液暂存池(8)内均设有搅拌装置(10)。
3.根据权利要求2所述的一种微藻HC-2处理奶牛养殖废水装置,其特征在于,所述搅拌装置(10)为搅拌机。
4.根据权利要求1所述的一种微藻HC-2处理奶牛养殖废水装置,其特征在于,所述清水管道(2)、沼液管道(3)上均设有流量计(9)。
5.根据权利要求4所述的一种微藻HC-2处理奶牛养殖废水装置,其特征在于,所述反应池(16)底部设有曝气管,所述曝气管与CO2罐相连通,且曝气管上设有供气开关(19)。
6.根据权利要求1所述的一种微藻HC-2处理奶牛养殖废水装置,其特征在于,所述反应池(16)为玻璃池或PVC池,其长×宽×高为0.4米×0.3米×0.23米。
7.一种微藻HC-2处理奶牛养殖废水的方法,使用权利要求1-6中任一项权利要求所述的一种微藻HC-2处理奶牛养殖废水装置,其特征在于,包括以下步骤:
(1)将微藻藻种接种到装有培养液的锥形瓶中,放置于摇床上进行培养;
(2)废水通过沼液管道(3)泵入到沼液池(5)进行离心处理,从而去除固体物质;
(3)然后再泵入到沼液暂存池(8)内,并通过清水管道(2)向沼液暂存池(8)内注入清水对离心后的废水进行10倍稀释;
(4)再将稀释后的废水和培养后的藻种放入沼液暂存池(8)内进行混合,并加入3.0%海藻酸钠、3.5%氯化钙;
(5)将上述混合液注入到反应池(16)进行培养,其中曝气管通入CO2提高微藻生长速度,提高沼液处理效率,以及通过回流管(18)对反应池(16)内的混合液进行循环净化;
(6)培养完成后,将混合液泵入到收集池(21)内进行离心,分离出微藻进行重复使用,分离出的液体泵入到清水池(22)内。
8.根据权利要求7所述的一种微藻HC-2处理奶牛养殖废水的方法,其特征在于,所述步骤(1)中培养液包括浓度为20g/L的葡萄糖、浓度为1.2g/L的NaNO3、浓度为80mg/L的K2HPO4·3H2O、浓度为200mg/L的MgSO4·7H2O。
9.根据权利要求8所述的一种微藻HC-2处理奶牛养殖废水的方法,其特征在于,所述培养液的pH 7,光暗比18:6,光照强度4000LUX。
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