位置 

韦克菲尔德,英国

开始日期

2006 年 9 月

水源

原水

应用

饮用水生产及洗涤用水的回收利用

最终用户

可口可乐企业有限公司

背景

可口可乐企业(CCE)为位于北约克郡韦克菲尔德的旗舰工厂安装了全面的水净化与回收系统,以升级其水处理厂。作为一家饮料公司,水的质量、 安全和管理工作对于 CCE 而言至关重要。韦克菲尔德生产厂是 CCE 皇冠上的一颗宝石,引领着创新和质量。韦克菲尔德在 2001 年获得著名的“可口可乐”公司质量体系的认证,全球仅四家工厂获此殊荣。

设备的性能得到享誉净水领域的滨特尔 X-Flow 的支持,且如 CCE 本地水处理专家 David Lumb 所述:
“在可口可乐企业,我们持续努力提高我们的生产质量和环境标准。 滨特尔 X-Flow 的技术能力和对细节的关注给我们留下深刻印象。该系统与我们传统的净水方法不同,结果展现的前景非常好。水回收所做的改进也同样引人瞩目。"

流程

X-Flow 超滤系统由四个机架组成,共包含 96 个 Xiga 40 超滤膜元件,每天可处理 7000m³ 水。可自动运行整个处理设备。在两个容积为 800m³ 的储水罐中存放来自总管的水,然后泵送到共装有 66m³ 过滤介质的四个活性炭罐中。经过活性炭罐和有机物清除器之后,水被泵送至总处理能力达 400m³/h 的 X-Flow 机架。Xiga 技术可有效去除 99.99% 的病毒和细菌,包括水媒隐孢子虫
尽量减少水资源浪费是 X-Flow 系统原理的另一个关键部分。进入滨特尔水回收系统之前,来自活性炭过滤器和超滤膜元件的洗涤用水以 8m³/时 的速率泵送至 60m ³的收集罐。该系统的处理速度为 10m³/时,其中包含 Aquaflex 40 超滤膜元件。对于经过回收系统的每立方米水,仅 10% 被浪费掉。为确保获得最高的性能,我们与滨特尔签订了服务协议,由他们为设备提供维护支持。

供货范围

96 x Xiga 40 超滤膜
4 x Xiga 机架
4 x Aquaflex 40 超滤膜
1 x Aquaflex 机架

  • 滨特尔 Südmo 阀门
  • 电气安装
  • 服务合同

The Pentair ANMBR Design

Pentair’s decades of experience with membrane technology have led to highly reliable AnMBR designs. Submerged membrane units have been abandoned in favor of external installation, making it easy to inspect, clean, and maintain the membranes. The bioreactor thus never needs to be opened, which goes a long way in solving odor issues. X-Flow tubular membranes are used for the solids-liquid separation step, providing an effluent without TSS and retaining all of the biomass inside the bioreactor. 

In July 2017, Deschutes initiated a pilot study to verify that Pentair’s AnMBR technology is capable of handling the levels of COD and TSS created by spent hops and yeast residuals. The pilot also served to identify the organic loading rate, the MLSS concentration, and ideal sludge retention time to minimize the footprint without sacrificing effluent quality and membrane performance. Before designing the ideal full-scale system for the Deschutes Brewery, the team had to determine the membrane flux rate, crossflow velocity, filtration cycle, backwash interval, and chemical cleaning frequency. 

The six-month pilot showed the system’s superior performance to the brewery’s utility staff, who also learned about the operational ins and outs. The ability to accommodate the variable and high-strength wastewaters typically generated by craft breweries was clearly demonstrated. With fouling issues firmly under control due to the external set-up and Helix flux enhancement, the membranes provide a durable and reliable barrier for many years of demanding operations. The almost absolute separation between solids and fluids keeps the biomass in the reactor and delivers a superior effluent quality. The pilot warrants the construction of a full-scale version and allows Deschutes to plan for future water reuse options.

results

 Parameter unit  feed  permeate   reduction rate
 COD mg/ L  14,000 - 26,000   350-550 > 97%
 TSS mg/ L  3,500 - 6,000   Non-detactable  
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