Extraction of Amino-J Acid from Waste-water by Emulsion Liquid Membrane

The emulsion liquid membrane technique was used to extract amino-J acid from industrial dye waste-water.The effects of stirring speed,ratio of the emulsion to water(Rew),ratio of the oil to internal phase(Roi)and membrane phase components on the extraction rate were investigated and optimized.The results showed that the extraction rate of amino-J acid approached 97% when the stirring speed was 300 r/min,Rew 1:6,Roi 1:1,trioctylamine(TOA)3 mL/100 mL kerosene,and methyl?didecyle?alcohol?acrylate(LMA-2)3 g/100 mL kerosene,respectively.The extraction rate had not changed with the oil phase reused for times.

Water Environmental Impact Assessment and Analysis of Foshan Brewery Project

In recent years, the beer industry is a biological food industry that consumes a lot of water, and it has developed rapidly in China. The sewage discharged from the mass production of beer poses a huge threat to the environment. In order to evaluate and better solve the possible environmental impacts of beer treatment engineering projects, a brewery project in Foshan City is taken as an example to investigate the water pollution generation links of the engineering process including surface water and groundwater. According to the relevant technical methods and standards, water pollution factors are screened, and concentration and discharge are monitored. Through comprehensive analysis, predictive evaluation is obtained. It is confirmed that the project meets the requirements of national laws and regulations and environmental protection standards.

硅藻土、啤酒废液强化好氧颗粒污泥启动及运行效能

以实际市政污水为原水,添加硅藻土和啤酒废液,旨在分析硅藻土添加和啤酒废液调整进水有机质浓度,对好氧颗粒污泥的启动以及其脱氮和除磷效能的影响。结果表明:在第20 d时,投加硅藻土系统中出现形状规则的颗粒;在SBR中培养好氧颗粒污泥的系统中投加硅藻土后会显著强化好氧颗粒污泥的沉降性能,加速启动;投加硅藻土强化的两组AGS拥有更好的脱氮除磷效果,且对微生物的筛选和驯化也用时更短;投加啤酒废液的反应器脱氮除磷性能优于对照组,稳定后出水氮磷指标均能满足一级A标准。表明在当下污水厂的进水水质下,进水中的有机物浓度对好氧颗粒污泥实现高效脱氮和除磷过程及其颗粒形成有着显著影响,是关键制约因素。添加啤酒废液的反应器中富集了脱氮除磷和提高颗粒稳定的相关菌属如Anaerolineae和Alphaproteobacteria。

酿酒厂污水处理工艺优化的温室气体减排及经济效益分析

酿酒过程中会产生大量富含有机污染物的废水,目前对酿酒行业污水处理过程中温室气体排放水平的认识尚不清楚。结合《城镇污水处理厂污染物去除协同控制温室气体核算技术指南》以及生命周期评价(LCA)方法,构建酿酒厂污水处理碳排放定量分析模型,对比了传统工艺和厌氧微生物在线培养技术(IBB)协同鸟粪石脱氮除磷(MAP)工艺在酿酒污水处理过程中的温室气体排放。结果表明,IBB+MAP工艺处理1 t废水的净碳排放量为-46.8 kg CO_(2)eq,其碳减排效益与传统工艺相比提高50.9%。另外,经济效益分析表明,IBB+MAP工艺带来的经济收益约为2.76元/t污水,可有效降低污水处理的运营负担。

酸度对酿酒废水厌氧消化效果的影响研究

以酿酒废水为供试材料,研究了不同酸度对酿酒废水中氨基酸、还原糖、蛋白质和甲醛含量的影响,以期提高酿酒废水"碳氧化"利用效率。实验结果显示:与处理A(溶液初始pH为6)相比,处理D(溶液初始pH为9)中氨基酸与还原糖含量分别高0.78倍和0.24倍,具有显著差异(p<0.05);处理E(溶液初始pH为10)中蛋白质与甲醛含量分别高2.38倍和0.72倍,具有显著差异(p<0.05)。由此表明,在碱性条件(溶液初始pH为9~10)对酿酒废水进行厌氧消化处理,可促进酿酒废水中的有机质向氨基酸、还原糖、蛋白质和甲醛转化,提高酿酒废水“碳氧化”利用效率。

Production and application of a novel bioflocculant by multiple-microorganism consortia using brewery wastewater as carbon source

The flocculating activity of a novel bioflocculant MMF1 produced by multiple-microorganism consortia MM1 was investigated. MM1 was composed of strain BAFRT4 identified as Staphylococcus sp. and strain CYGS1 identified as Pseudomonas sp. The flocculating activity of MMF1 isolated from the screening medium was 82.9%, which is remarkably higher than that of the bioflocculant produced by either of the strains under the same condition. Brewery wastewater was also used as the carbon source for MM1, and the cost-effective production medium for MM1 mainly comprised 1.0 L brewery water （chemical oxygen demand （COD） 5000 mg/L）, 0.5 g/L urea, 0.5 g/L yeast extract, and 0.2 g/L （NH4）2SO4. The optimal conditions for the production of MMF1 was inoculum size 2%, initial pH 6.0, cultivating temperature 30℃, and shaking speed 160 r/min, under which the flocculating activity of the MMF1 reached 96.8%. Fifteen grams of purified bioflocculant could be recovered from 1.0 L of fermentation broth. MMF1 was identified as a macromolecular substance containing both protein and polysaccharide. It showed good flocculating performance in treating indigotin printing and dyeing wastewater, and the maximal removal efficiencies of COD and chroma were 79.2% and 86.5%, respectively.

Effect of sulfate on the methanogenic activity of a bacterial culture from a brewery wastewater during glucose degradation

The maximum specific methanogenic activity （SMA） of a sludge originating from a brewery wastewater treatment plant on the degradation of glucose was investigated at various levels of sulfate on a specific loading basis. Batch experiments were conducted in serum bottles at pH 7 and 35℃. A comparison of the values indicates that the SMA of this mixed culture was increased and reached its highest level of 0.128 g CH4 gas COD/（g VSS.d） when biomass was in contact with sulfate at a ratio of 1：0.114 by weight.

Ecosystem services of coastal sand dunes saw from the aspect of Sake breweries in Chiba Prefecture, Japan: A comparison of coastal and inland areas

In this report, we reviewed the differences in the ecosystem services of coastal and inland areas surrounding 39 Sake breweries in Chiba Prefecture by investigating environmental variables (e.g., location, altitude, soil, and hardness of preparation water). The Sake breweries were located in three distinct environments: the coastal vicinity, the river plains region, and the plateau/ mountainous region. The hardness of the preparation water and the soil types in the coastal vicinity were compared with those of the river plains and the plateau/mountainous region. Strong hard and hard water sources were observed in 70% or more of the breweries in the coastal vicinity, and sand dune regosol, coarse particle brown lowland soil, and coarse particle grey soil were more prevalent along the coast than inland. Most of the Sake brewery wells in the coastal vicinity were approximately 5 - 10 munderground, and there were no great differences in the number of Sake breweries in each well depth class in the river plains and the plateau/mountains region. We analysed environmental factors (distance from the sea, soil type, water hardness and preparation water collection depth) using a principal component analysis. This analysis revealed the existence of three main environments: the coastal vicinity, the river plains and the plateau/mountainous region. We conclude that the decrease in altitude between the inland Sake breweries and those along the coast is accompanied by a corresponding increase in the hardness of preparation water (from soft water to strong hard or hard water) and shifts in soil composition from gley soil, grey lowland soil, brown forest soil, and andosol to sand dune regosol, coarse particle brown lowland soil, and coarse particle grey soil.

Parametric Response Evaluation for Xanthosoma spp. Induced Coag-Flocculation of Brewery Effluent

This paper presents the kinetic and functional parametric behavior of cocoyam coagulant (CYC) in respect of pH and time variation in brewery effluent at room temperature. The study employed standard nephelometric jar test while CYC production was based on method reported by Ndabigengesere. Coag-flocculation parameter such as order of reaction α, rate constant K, coagulation period, τ1/2 etc. were determined. Maximum parameter values are recorded at K of 6 × 10-1 L/mg·min;dosage of 200 mg/L, pH 8 and τ1/2 of 0.00146 min while the minimum values are recorded at 3 × 10-7 L/mg, dosage of 100 mg/L, pH 10 and τ1/2 of 20.4 min. The maximum coag-flocculation efficiency E (%) obtained was 92.28, thus establishing CYC as a potential effective coag-flocculaant.

Optimal Evaluation of Coag-Flocculation Factors for Alum-Brewery Effluent System by Response Surface Methodology

This work investigates coag-flocculation optimization treatment of alum-brewery effluent system via response surface methodology (RSM). To minimize suspended and dissolved particles (SDP), experiments were carried out using nephelometric jar test and 23-factorial design with three star-points, six-center-points and two replications. A central composite design, which is the standard design of RSM, was used to evaluate the effects and interactions of three major factors (coagulation pH, coagulant dosage, settling time) on the treatment efficiency. Multivariable quadratic model developed for the response studied indicates the optimum conditions to be 9, 500mg/l and 20minutes for coagulation pH, coagulant dosage and settling time, respectively. At optimum, the SDP was reduced from 10831.490mg/l to 801.451mg/l, representing 92.601% removal efficiency. RSM has demonstrated to be appropriate approach for the optimization of the coag-flocculation process by statistical evaluation.

Application of Single Angle Turbidimetry on Coag-Flocculation Effect of <i>Detarium microcarpum</i>Seed in Brewery Effluent

Coagulation-flocculation is a proven technique for the removal of suspended solids in wastewater, through the application of single angle turbidimetric measurement. Through this measurement, the coag-flocculation kinetics and functional parameters behavior of Detarium microcarpumin brewery effluent with respect to pH, dosage and time were followed at room temperature. Process parameters such as order of reaction α, rate constant (K), coagulation period τ1/2 etc were determined. Results indicated that reaction order, rate constant, period, pH and dosage recorded optimum values at 2, 1.8 × 10-2 L/mg.min, 0.152 min, 4 and 100 mg/L, respectively. Maximum efficiency recorded was 96.07% at 30 min. Detarium microcarpum has shown potential as an effective bio-coagulant for the removal of turbidity from brewery effluent.

KINGWAY'S DREAM AND GLORY--Interviewing Shenzhen Brewery Company Limited's Manager General, Yuan Youjian and his colleagues

Why could Kingway, brand of Shenzhen Brewery CompanyLimited (SBC). in so short time realize its dream and acquire glories? What is its secret in success? What do itsdecision-makers look like? With all these questions, reporter interviewed mangaer general Yuan Youjian.

Rgwo performances of submerged membrane bioreactor treating brewery wastewater: A laboratory study

Performances of submerged membrane bioreactor (SMBR) treating brewery wastewater were investigated in this study. With little variation of COD:TN:TP ratio (100:5:1) in influent, SMBR showed high removal efficiency (>90%) for both COD and NH4^+-N, and it also showed a strong resistive ability for shock organics loading rate, evidenced by no obvious fluctuation for COD in the effluent when the organics loading rate suddenly increased from 0.27 g/(gMLSS·d) to 0.54 g/(gMLSS·d). Comparatively different with the COD removal, TN and TP removal showed a strong correlation with the growth stage of the sludge in SMBR. When the sludge was in the multiplication stage, about 45% of TN was removed and an average removal efficiency of 30% for TP was also observed. However, when the activated sludge was in the steady stage, the removal efficiency for TN decreased to about 30%, whereas, the removal efficiency for TP was very low, and sometimes even below zero. The results of GC/MS indicated that the residual organic matters in the effluent were mainly alkyl hydrocarbon with high molecular weight, and coupling with the results of electroscopic scanning, it is speculated that biomass formed at external and internal membrane fibers played an important role for the removal of small organics.

“食品发酵与酿造工艺学”融入课程思政的探索与实践

课程思政是工程教育培养德才兼备的工程科技人才的重要途径。该研究进行了课程思政建设的探索与实践,探讨了如何提高课程思政建设效果,提升学生的学习获得感。根据“食品发酵与酿造工艺学”课程教学内容的特点,在课堂教学中融入思政教育元素,分别以发酵技术概论、发酵工业发展、现代发酵技术的改革创新等为融入点,在讲授专业课的同时对树立学生正确的世界观、人生价值观、爱国情怀、科学家精神和创新意识等进行探索和实践。

高浓度啤酒废水作为污水脱氮除磷工艺补充碳源的应用及经济分析

全球性资源紧缺与资源节省空间不断收窄是当前社会面临的挑战之一,从废弃物中回收资源以缓解资源短缺压力一直以来是各个行业的研究热点。啤酒废水作为一种有机物浓度高且无毒无害的废水,在污水处理与资源化领域得到了广泛关注。文章以青岛啤酒二厂为例,通过对啤酒生产过程中各个工序的废水水质分析,定向选择糖化工序中的高浓度有机废水作为污水生物处理过程中的反硝化外加碳源,补充到污水站AAO污水处理工艺中。试验结果表明,随着高浓度啤酒废水添加浓度的增加,总氮去除率增高,总磷去除率变化不明显;当外加碳源质量浓度为300 mg/L时,总氮平均去除率为85.51%,总磷平均去除率为71.65%,脱氮除磷效果较好。该研究不仅解决了污水生物处理和反硝化脱氮碳源不足的问题,也降低了啤酒企业的废水处理成本,实现经济效益和社会效益双赢,为啤酒废水资源化方法的实际应用和进一步研究提供思路和参考。

典型高级氧化工艺对酿酒废水有机污染物去除的对比研究

本文以酿酒废水二级生化出水为研究对象,对比研究了芬顿技术、Fe2+/PS工艺以及光催化技术深度处理酿酒废水的效果。通过单因素实验确定了不同工艺的最优参数,并对不同工艺处理后的三维荧光光谱、发光细菌生物毒性进行分析,探究酿酒废水处理过程中有机污染物去除特性和毒性转化规律。结果表明,深度处理工艺能够有效去除酿酒废水二级生化出水的有机污染物;急性毒性试验表明,芬顿工艺会抑制发光细菌的活性,可能与较低的pH及活性氧化物质的产生有关。

关于厌氧氨氧化的酿酒废水处理工艺探析

为了推进厌氧氨氧化在酿酒废水脱氮中应用,对厌氧氨氧化工艺应用于酿酒废水处理的工艺设计及调试运行进行了研究,针对酿酒废水的特性,设计了由一体化厌氧反应器和二级厌氧氨氧化反应器组成的两级厌氧氨氧化处理工艺;采用酿酒废水处理厂硝化反硝化污泥接种,处理酿酒废水。成功启动厌氧氨氧化反应器的时间为105天,稳定运行后,反应器氨氮总去除率达95.8%。研究表明,以酿酒废水处理厂硝化反硝化污泥接种,两级厌氧氨氧化工艺处理酿酒废水,能够较快地形成处理能力。为厌氧氨氧化工艺在酿酒废水处理的推广应用积累了经验。

QC活动在降低酿酒废水氨氮含量中的应用

通过成立QC小组,针对酿酒废水生化处理过程排水中氨氮含量高的问题,QC小组按照PDCA管理循环,通过调查前端生化处理氨氮含量高的问题现状,对主要问题进行原因分析和要因确认,制定具体的对策方案,使前端生化过程排水氨氮含量从35 mg/L降低至6.16 mg/L,效果显著。本次QC活动有效降低了酿酒废水在前端生化处理过程中的氨氮含量,为后端处理有效降低负荷并达标排放提供良好保障。