Prediction of the Wastewater’s pH Based on Deep Learning Incorporating Sliding Windows

To protect the environment,the discharged sewage’s quality must meet the state’s discharge standards.There are many water quality indicators,and the pH(Potential of Hydrogen)value is one of them.The natural water’s pH value is 6.0–8.5.The sewage treatment plant uses some data in the sewage treatment process to monitor and predict whether wastewater’s pH value will exceed the standard.This paper aims to study the deep learning prediction model of wastewater’s pH.Firstly,the research uses the random forest method to select the data features and then,based on the sliding window,convert the data set into a time series which is the input of the deep learning training model.Secondly,by analyzing and comparing relevant references,this paper believes that the CNN(Convolutional Neural Network)model is better at nonlinear data modeling and constructs a CNN model including the convolution and pooling layers.After alternating the combination of the convolutional layer and pooling layer,all features are integrated into a full-connected neural network.Thirdly,the number of input samples of the CNN model directly affects the prediction effect of the model.Therefore,this paper adopts the sliding window method to study the optimal size.Many experimental results show that the optimal prediction model can be obtained when alternating six convolutional layers and three pooling layers.The last full-connection layer contains two layers and 64 neurons per layer.The sliding window size selects as 12.Finally,the research has carried out data prediction based on the optimal CNN deep learning model.The predicted pH of the sewage is between 7.2 and 8.6 in this paper.The result is applied in the monitoring system platform of the“Intelligent operation and maintenance platform of the reclaimed water plant.”

Viable but Non-culturable Bacteria in Bioreactorbased Pharmaceutical Wastewater

We aimed to investigate the composition and phylogenetic rela-tionships of the viable but non-culturable （VBNC） state bacteria in pharmaceutical wastewater. [Method] Soil filter was used for constructing bioreactor. Based on the resuscitation- and growth-promoting function of Resuscitation Promoting Factor （Rpf） for VBNC bacteria, VBNC bacteria were isolated by most probable number （MPN） method and dilution-plating method and 16S rRNA gene phylogenetic analysis was carried out. [Result] In MPN culture system, Rpf could promote the resuscitation and growth of some bacteria. There were VBNC advantage floras that sensitive to Rpf in pharmaceutical wastewater. The culturable VBNC bacteria in pharmaceutical wastewater consisted of high-GC gram-positive actinomycetes including genera Mi-crobacterium, Gordonia and Leucobacter, and gram-negative bacteria including gen-era Candidimonas, Xanthobacter and Aminobacter. Four strains （ZYM1, ZYM3, ZYZR4, ZYXR1） could be potential novel species. [Conclusion] This research re-vealed there were VBNC bacteria in pharmaceutical wastewater. These results could provide important ideas and methods for further studies on VBNC bacteria in the pharmaceutical wastewater, especial y the formation mechanism and recovery mech-anism of VBNC bacteria and the advanced degradation process improvement of pharmaceutical wastewater.

Na_(2)S改性生物炭高效吸附重金属离子:制备及吸附机理

以废弃芦苇为原料、硫化钠(Na_(2)S)为改性剂,制备了对Pb^(2+)、Cd^(2+)、Zn^(2+)具有高效吸附性能的Na_(2)S改性生物炭(BCS)。通过扫描电镜-能谱(SEM-EDS)、红外光谱(FTIR)、元素分析等手段对改性前后的生物炭进行了表征。结果显示,Na_(2)S改性能够为生物炭引入多种含硫官能团,提升孔体积并增加比表面积。Langmuir模型拟合结果表明,随着改性剂Na_(2)S溶液浓度的增加,BCS对重金属离子的吸附能力得到提升。在pH为2.0~6.0的范围内,BCS对重金属离子的吸附能力随pH增加逐步增强。在pH=6.0时,BCS对Pb^(2+)、Cd^(2+)、Zn^(2+)的最大吸附量分别为494.99、131.14、94.89 mg/g。根据动力学实验结果可知,BCS对重金属离子的吸附行为符合伪二级动力学模型。吸附机理主要包括表面官能团的络合、离子交换和静电吸附。本研究可为废弃物的再利用以及废水中的重金属的高效去除提供一种环境友好且可行的解决方案。

Treatment of pharmaceutical wastewater containing recalcitrant compounds in a Fenton-coagulation process

The advanced treatment using integrated Fenton＇s reaction and coagulation process was investigated in this study. Before the advancement, the pharmaceutical wastewater containing lincomycin hydrochloride was pretreated by UASB （upflow anaerobic sludge bed） and a SBR （sequencing batch reactor） process. The residual recalcitrant compounds, measured by gas chromatographymass spectrometry （GC-MS）, mainly consisted of alcohols, phenols, and nitrogenous and sulfur compounds. The experimental results indicated that when the Fenton＇s reaction was conducted at pH=3.0, H2O2CODOcr=0.27, H2O2/Fe^2＋=3：1 and 30 min of reaction time, and the coagulation process operated at a sulfate aluminum concentration of 800 mg/L and pH value of 5.0, the color and COD in the wastewater decreased by 94% and 73%, respectively; with a finale COD concentration of 267 mg/L and color level of 40 units, meeting the secondary standard of GB8978-1996 for industrial wastewater.

Treatment of Wastewater Containing RDX by Fenton's Reagent

Fenton's reagent was employed to treat the wastewater containing RDX.The effects of FeSO4 concentration,H2O2 concentration,pH value,reaction time,temperature and initial COD of wastewater on residual COD of wastewater were investigated.The results show that the optimum FeSO4 concentration and pH are 700 mg/L and 2.5,respectively,and the residual COD of wastewater decreases with the rise in H2O2 concentration,but increases with the rise in temperature.After Fenton's reagent treatment,the initial COD of less than 874 mg/L wastewater can meet effluent standard.Under conditions of 100 mg/L H2O2,437 mg/L initial COD and 15 ℃ temperature,the lowest residual COD is obtained at 83.80 mg/L in 5 min.

不同中医证型Wilson病患者肝脏纤维化差异及其与弹性硬度值的关系

目的:探讨不同中医证型Wilson病(WD)患者肝脏硬度值(LSM)及纤维化指标差异及两者的关系。方法:回顾性收集2021年2月至2023年4月住院确诊的110例WD患者的临床资料,中医证型采用指标聚类分析,绘制聚类图。采用简单对应分析中医证型与ADL分级的相关性。比较不同中医证型的一般临床资料、LSM及肝纤维化相关指标,从而探讨LSM与肝纤维化及中医证型分布的关系。结果:WD患者中医证型以湿热内蕴证(59例,53.64%)居多,痰瘀互结证(43例,39.09%)次之,肝肾阴虚证(5例,4.54%)、脾肾阳虚证(3例,2.73%)较少;痰瘀互结证偏向0~Ⅰ级,湿热内蕴证偏向Ⅱ级,肝肾阴虚证偏向Ⅲ~Ⅳ级,脾肾阳虚证在二维投影图中间,并未偏向WD病变程度某一分级;痰瘀互结证、肝肾阴虚证、脾肾阳虚证患者肝脏LSM均高于湿热内蕴证(P<0.05);肝肾阴虚证、脾肾阳虚证患者血清透明质酸(HA)和Ⅳ型胶原(Ⅳ-C)水平高于湿热内蕴证、痰瘀互结证组(P<0.05),4组患者Ⅲ型前胶原氨基端肽(PⅢNP)、层黏连蛋白(LN)水平差异无统计学意义(P>0.05)。湿热内蕴证、痰瘀互结证、肝肾阴虚证中LSM与HA、Ⅳ-C均呈不同程度的正相关。结论:LSM联合血清学指标能更好地评估不同证型WD患者肝纤维化程度。

Ni-MOF/Zn_(0.5)Cd_(0.5)S合成及其光催化废水制氢研究

为了提升Zn_(0.5)Cd_(0.5)S的光催化产氢性能,采用水热法制备了Ni-MOF改性Zn_(0.5)Cd_(0.5)S复合光催化剂,通过XRD、SEM、TEM、XPS等分析方法对制备样品的结构及光电化学性能进行了表征,并研究了其光催化垃圾渗滤液混合页岩气返排废水制氢的可行性及动力学特征。结果表明,Zn_(0.5)Cd_(0.5)S主要呈现为纳米颗粒状结构,Ni-MOF主要由长约为10 μm、宽约为9 μm的超薄方形片构成,当Ni-MOF与Zn_(0.5)Cd_(0.5)S复合时,Zn_(0.5)Cd_(0.5)S纳米颗粒沉积在Ni-MOF方形片的表面,粒径显著降低,减少了Zn_(0.5)Cd_(0.5)S纳米颗粒的团聚,光吸收范围出现了蓝移,但仍然具有优异的可见光响应能力。质量分数为15%的Ni-MOF/Zn_(0.5)Cd_(0.5)S在垃圾渗滤液混合页岩气返排废水中展现出最优的光催化产氢性能,模拟太阳光照射3 h产氢量达1887 μmol,产氢过程遵从零级反应动力学模型,产氢速率为685.9 μmol/h,约为Zn_(0.5)Cd_(0.5)S的5.7倍。

Influence of Salinity on Duckweed Growth and Duckweed Based Wastewater Treatment System

The growth of duckweed (Spirodela polyrrhiza) was investigated in an outdoor batch system under 15 different conductivities ranging from 200 μS/cm to 3000 μS/cm with average 110 μmol/m2 daylight intensity. The growth was performed in an anaerobically treated domestic wastewater using an initial plants population of 50 fronds. Increase in Relative Growth Rate—RGR—(in terms of fresh weight and number of fronds) had a significant non-linear (polynomial) relationship with the conductivity. The maximum RGR related to fresh weight of 0.176 was observed at the conductiviity of 1200 μS/cm while the maximum RGR related to fronds number was 0.193 at the conductivity of 800 μS/cm. The optimum range for duckweeds growth was found to be between conductivities of 600 μS/cm and 1400 μS/cm. The maximal rates of removal of COD of 14.5 mg/day, of 0.65 mg/day, NTK of 15.68 mg/day, faecal coliforms of 100% and turbidity of 80.8% were observed in this range. The COD and PO42- removal rates were highly correlated to the growth rate, with the correlation factor of up to 0.783 and, then to the conductivity. The NTK reduction was positively related to the conductivity.

Biosynthesis of raw starch degradingβ-cyclodextrin glycosyltransferase by immobilized cells of Bacillus licheniformis using potato wastewater

The study was sought to enhance the synthesis of thermal stableβ-cyclodextrin glycosyltransferase(β-CGTase)using potato wastewater as a low-cost medium and assess the degree to which it is efficient for industrial production ofβ-cyclodextrin(β-CD)from raw potato starch.Thermophilic bacteria producingβ-CGTase was isolated from Saudi Arabia and the promising strain was identified as Bacillus licheniformis using phylogenetic analysis of the 16S rRNA gene.Alginate-encapsulated cultures exhibited twice-fold ofβ-CGTase production more than free cells.Scanning electron microscopy(SEM)of polymeric capsules indicated the potential for a longer shelf-life,which promotes the restoration of activity in bacterial cells across semi-continuous fermentation ofβ-CGTase production for 252 h.The optimal conditions forβ-CGTase synthesis using potato wastewater medium were at 36 h,pH of 8.0,and 50°C with 0.4%potato starch and 0.6%yeast extract as carbon and nitrogen sources,respectively.The purified enzyme showed a specific activity of 63.90 U/mg with a molecular weight of∼84.6 kDa as determined by SDS-PAGE analysis.The high enzyme activity was observed up to 60°C,and complete stability was achieved at 75°C.High levels of activity and stability were shown at pH 8.0,and the pH range from 7.0–10.0,respectively.The enzyme has an appreciable affinity for raw potato starch with a Km of 5.7×10−6 M and a Vmax of 87.71μmoL/mL/min.β-CD production was effective against 25 U/g of raw potato starch.The outcomes demonstrated its feasibility to develop a fermentation process by integrating the cost-effective production ofβ-CGTase having distinctive properties forβ-CD production with ecofriendly utilization of potato wastewater.

Separating trash and solid materials from the wastewater ammonia stripping tower UASB biological oxidation pond processes for the treatment of the swine factory＇s wastewater

By making the use of the processes which includes separating trash and solid materials from the wastewater-ammonia stripping tower-UASB-biological oxidation pond, we have treated the wastewater which comes from the swine factory. The treated wastewater can meet the primary standard of The People＇s Republic of China based on sewage discharge standards and the wastewater treatment project design contract （GBl8596-2001）, and the effluent will be used as irrigation-water. We introduce this project including the quality of influent and effluent and the flow scheme, the statement of every part, the investment and the effect, etc. The operation indicated that this process has many merits such as the stability in operation-effect and the convenience in management. So it will provide some help for the similar wastewater treatment.

Poly(ionic liquid)-crosslinked graphene oxide/carbon nanotube membranes as efficient solar steam generators

Graphene oxide(GO)is regarded as a promising candidate to construct solar absorbers for addressing freshwater crisis,but the easy delamination of GO in water poses a critical challenge for practical solar desalination.Herein,we improve the stability of GO membranes by a self-crosslinking poly(ionic liquid)(PIL)in a mild condition,which crosslinks neighbouring GO nanosheets without blemishing the hydrophilic structure of GO.By further adding carbon nanotubes(CNTs),the sandwiched GO/CNT@PIL(GCP)membrane displays a good stability in pH=1 or 13 solution even for 270 days.The molecular dynamics simulation results indicate that the generation of water nanofluidics in nanochannels of GO nanosheets remarkably reduces the water evaporation enthalpy in GCP membrane,compared to bulk water.Consequently,the GCP membrane exhibits a high evaporation rate(1.87 kg m^(-2)h^(-1))and displays stable evaporation rates for 14 h under 1 kW m^(-2)irradiation.The GCP membrane additionally works very well when using different water sources(e.g.,dye-polluted water)or even strong acidic solution(pH=1)or basic solution(pH=13).More importantly,through bundling pluralities of GCP membrane,an efficient solar desalination device is developed to produce drinkable water from seawater.The average daily drinkable water amount in sunny day is 10.1 kg m^(-2),which meets with the daily drinkable water needs of five adults.The high evaporation rate,long-time durability and good scalability make the GCP membrane an outstanding candidate for practical solar seawater desalination.

TCM Treatment of Asthma in Children with Yin Hua Wu Mei Tang——Professor Liu Bichen's Experience in Treating Asthma

Asthma is characterized by paroxysmaldyspnea,rales in the throat,difficulty in breathing,and inability to lie horizontally.It is commonly seenin children with a weak body constitution,and tendsto be intractable,thus being harmful to the

Contradiction between Traditional Chinese Medicine and Modern Medicine in Understanding and Treating Parkinson’s Disease and Its Solutions

Parkinson’s disease is not a lifelong disease. Although modern medicine cannot cure Parkinson’s disease, I found that traditional Chinese medicine can cure Parkinson’s disease. However, because of the misunderstanding of the treatment ideas of most of Chinese doctors, they failed to achieve the goal of curing Parkinson’s disease. There are differences not only in understanding and treating Parkinson’s disease between traditional Chinese medicine and modern medicine, but also in understanding within the Chinese medicine community. Because they have not been able to cure Parkinson’s disease, they draw the conclusions from modern medicine and also believe that Parkinson’s disease is an incurable lifelong disease. This paper deeply explores the problems existing in modern medicine and traditional Chinese medicine, puts forward new ideas for understanding and treating Parkinson’s disease, and explores the correct way to understand and cure Parkinson’s disease for the medical community to overcome Parkinson’s disease.

常见中医证型Wilson病患者情绪智力水平与病变脑区相关性

目的 探讨常见中医证型的Wilson病(Wilson’s disease, WD)患者情绪智力水平、维度特征及其与病变脑区的相关性。方法 采用情绪智力水平量表(emotional intelligence scale, EIS)对103例肝胆湿热证、痰湿阻络证及肝肾阴虚证WD患者以及47例健康者进行测评,并对WD患者进行颅脑MRI检查。结果 与正常组比较,痰湿阻络证组EIS总分及表达能力、自我管理及管理他人3项因子分均减少(P<0.05),肝肾阴虚证组EIS总分及全部4项因子分均减少(P<0.05),肝胆湿热证组EIS总分和各维度因子分差异无统计学意义(P>0.05);与肝胆湿热证组比较,痰湿阻络证组EIS总分及表达能力因子分减少(P<0.05),肝肾阴虚证组EIS总分、情绪感觉能力及自我管理因子分减少(P<0.05);与痰湿阻络证组比较,肝肾阴虚证组EIS总分和各维度因子分差异无统计学意义(P>0.05)。肝胆湿热证WD患者以基底节、脑干、丘脑损伤为主,痰湿阻络证WD患者以基底节、脑干、丘脑损伤为主,肝肾阴虚证WD患者以基底节损伤、脑干损伤、脑萎缩为主。额叶皮质损伤与WD患者EIS总分及表达能力因子分呈正相关(P<0.05);苍白球损伤与WD患者EIS总分及管理他人因子分呈负相关(P<0.05)。结论 痰湿阻络证及肝肾阴虚证WD患者情绪智力水平较低,而肝胆湿热证WD患者情绪智力正常;3种常见中医证型WD患者中,以基底节及脑干损伤较为常见;额叶皮质及苍白球损伤是影响WD患者情绪智力水平的因素。

C-S-H复合絮凝剂的制备及其对洗毛废水的处理

针对纺织洗毛废水使用单一絮凝剂处理困难的问题,以水化硅酸钙为原料,将其作为复合絮凝剂无机组分的絮凝性能效果,研究此类复合絮凝剂对絮凝效果的影响和作用。实验表明:改性后的水化硅酸钙、聚合氯化铝和PAM作复合絮凝剂投加,可得到较好的絮凝性能。通过正交实验、单因素实验等方法优化,复合絮凝剂对洗毛废水的污泥去除量超过96%。最佳絮凝工艺为:絮凝剂总投加量2.5 g/100 ml,废水pH值7,温度30℃,搅拌时间4 min。

酿酒废水培养钝顶螺旋藻(S.platensis)与营养物质去除的研究

经前处理后的酿酒厂废水用清水稀释用来培养钝顶螺旋藻 ,可以获得高生物量的钝顶螺旋藻。同时 ,废水中的营养物质也可以被去除。在连续培养条件下 ,使用改进的开放式通道装置培养获得螺旋藻的蛋白质、水分、灰化成份分别为 6 2 .7%、6 .2 1 %和 5 .2 6 % ,重金属含量也符合标准 (GB 1 991 9-1 997)。T -N ,NH4 + -N ,T -P和PO4 3 --P的去除效率分别可达到 72 %、97.9%、4 1 .3%、4 3.1 %。

S-TIL联合中药治疗原发性肝癌

1 材料和方法 1.1 材料 肝癌患者65例符合中国常见恶性肿瘤诊治规范的肝癌诊断标准。A组35例男23例,女12例,年龄27岁～68岁,平均46.5岁,其中右叶肝癌18例,左叶6例,弥漫性11例,肿瘤最大为14cm×13.2cm,最小为4.5cm×3.8cm,门脉内有癌栓10例,B组30例,男21例,女9例,年龄31岁～65岁,平均45岁,其中右叶肝癌15例,左叶7例,弥漫型8例,肿瘤最大为13.5cm×12.8cm,最小为4.3cm×3.9cm,门脉内有癌栓6例。 1.2

SPME-GC-MS快速分析炼油厂废水中痕量VOC_s

采用固相微萃取 -气相色谱 -质谱联用 (SPME- GC- MS)对炼油厂废水中痕量挥发性有机化合物(VOCs)进行了定性分析 ,简化了预处理过程 ,总分析时间为 1h左右。对比处理前后的废水样品的 MS定性结果 ,为废水处理工艺的评价以及有机物降解机理提供了依据。

我国三级中医医院门诊患者中医药特色服务利用情况调查

目的:调查我国三级中医医院门诊患者中医药特色服务的利用情况,为中医医院的特色化发展提供依据。方法:对全国37家中医医院门诊患者中药饮片和中医非药物疗法的利用情况进行分析。合并中药饮片和中医非药物疗法利用为中医药特色服务利用情况,并采用卡方检验进行不同分层间的差异性分析。结果:共收集7,542例门诊患者,55.81%的患者开具了中药饮片处方,27.95%的患者采用了中医非药物疗法,31.77%的患者在诊疗过程中未采用中医药特色方法治疗。不同地理位置、就诊科室、医生职称患者中医药特色服务利用存在显著性差异(χ^(2)=26.459、393.670、54.343,P<0.01),而不同患者社会人口学特征间差异无统计学意义。结论:我国三级中医医院门诊患者中医药特色服务利用情况良好,但不同科室对中医药技术方法的利用各有侧重。中西部地区中医医院门诊患者中医药特色服务利用情况优于东部地区。职称越高的医生提供中医药特色服务的比例也越高。

原发性失眠患者中医证型与神经肽S受体基因rs324981多态性的相关性

目的:探讨原发性失眠(PI)患者中医证型与神经肽S受体(NPSR)基因rs324981多态性的相关性。方法:纳入154例PI患者,进行中医辨证分型,并匹配130名健康者为对照组。采用匹兹堡睡眠质量指数量表(PSQI)评估受试者睡眠质量。使用Mass ARRAY SNP基因分型技术检测受试者NPSR基因rs324981多态性,并分析PI患者不同中医证型与NPSR基因rs324981多态性的相关性。结果:154例PI患者中医辨证为肝郁化火证47例(30.52%),痰热内扰证16例(10.39%),阴虚火旺证60例(38.96%),心脾两虚证24例(15.58%),心虚胆怯证7例(4.55%)。PI阴虚火旺证患者NPSR基因rs324981多态性基因型分布与对照组比较,差异有统计学意义[P=0.034,OR=2.10,95%CI(1.05, 4.19)]。PI虚证和实证与对照组NPSR基因rs324981多态性的基因型和等位基因分布比较,差异均无统计学意义(P>0.05)。结论:PI患者阴虚火旺证可能与NPSR基因rs324981多态性存在相关性。