開(kāi)封市西區(qū)污水處理廠自控系統(tǒng)介紹_圖文

1、 開(kāi) 封 市西 區(qū) 污 水處 理 廠自 控 系 統(tǒng)介 紹吳 建 磊提要 開(kāi)封市西區(qū)污水處理廠是河南省第一批利用外國(guó)政府貸款興建的污水處理工程 。 對(duì)該 廠自控系統(tǒng)的組成 、 工藝操作模式及其運(yùn)行結(jié)果進(jìn)行了介紹 , 并結(jié)合實(shí)踐 , 談了一些工作體會(huì) 。關(guān)鍵詞 污水處理廠 自控系統(tǒng) 工藝操作模式 PLC 開(kāi)封市 129 901 129 Ó標(biāo)準(zhǔn)規(guī)范交流園地 Ó對(duì)自動(dòng)噴水滅火系統(tǒng)設(shè)計(jì)流量的探討黃 秉 政提要 對(duì)自動(dòng)噴水滅火系統(tǒng)的噴頭布置間距減小導(dǎo)致噴水強(qiáng)度加大 、 系統(tǒng)設(shè)計(jì)流量加大的不合 理現(xiàn)象進(jìn)行了分析 , 并提出了一個(gè) /設(shè)防標(biāo)準(zhǔn) 0的概念來(lái)規(guī)范設(shè)計(jì)流量的取值 。關(guān)鍵詞 自動(dòng)噴

2、水滅火系統(tǒng) 設(shè)計(jì)流量 額定流量 設(shè)防標(biāo)準(zhǔn) 92 1 WATER &WASTEWATER ENGINEERING Vol 129No 11January 2003 meters per day, in which 160cubic meters per day are concentrated wastewater with C OD 45000mg/L, BOD 660mg/L and p H 110112. Other discharges are weaker with COD 360mg/L and BOD 120mg/L. The designed effluent will

3、be C OD less than 100mg/L, B OD less than 20mg/L and pH=69. This target has been achieved, and the effluen t is qui te good enough to meet the national wastewater discharge standard.Summ ary on Treatment of Fermentation Waste o f A lcohol Preparation in Sugar -Cane Plant Hu Kailin et al (48 , , , ,

4、,Abstract:The common used processes treating fermen tation waste liq uid of alcohol preparation in sugar -cane plants home and abroad are summarized and their features are indicated. A wastewater circulating process composed of anaerobic digestion of raw waste and effluen t reuse for flue gas dust a

5、batement was presented. Thi s method is an improvement of a common used way: direct reuse the fermentation waste liq uid for flue gas dust abatemen t.Research on Treatment of Aniline Dyestuff -Chem ical Process Wastewater by C omposite Processes ofDeam ination -Catalytic Oxidation -Adsorption Li Min

6、 gyu et al (52 , , , , , , , , , , , , , , , , , , , , , , ,Abstract:A study on the treatment of aniline dyestuf-f chemical wastewater by composite processes of deamination, catalyt -ic oxidati on and adsorption has been carried out. The factors in affecting wastewater treatment were i nvesti gated.

7、 Experimental resul ts show that by using this process COD of was tewater could be reduced from 3114mg/L to less than 70mg /L and the total aniline compounds could be reduced from 016g/L to less than 3mg /L. The effluent could meet the requirement of national wastewater discharge standard. This meth

8、od is simple in technology, convenient in operati on, remarkable in effect and it will not cause secondary pollution.Review on Roof Rain -Water Dra inage Systems Wang Jiming (57 , , , , , , , , , , , , , , , , , , , , , , , ,Abstract:On the basis of engineering practices and scientific advances on f

9、ield of roof rain -water drainage, the flow -rate of the rain water system and the deviati on of the flow -patterns i nside the rain water pipeline are discussed in detail. Some revisions on the guidelines i n recen t rain water design norm related to determine the capacity of rainwater hoppers and

10、vertical pipes are pro -posed.Elicitation in Water System Design of Seashore Hotel in Havana Wan g Yan (69 , , , , , , , , , , , , , , , , , ,Abstract:The building of this four -s tar hotel situated in down town area of Havana, Cuba, is constructed jointly by Chinese State Construction Engineering C

11、orporation (CSCEC and Cuba Investment Corporation. The afterheat of cooling network was reused as heat media for hot water heater, and both profi ts of energy saving and environmental protecti on are obtained.On Low Cost Pump Com posed Pressure Regulated Water System Jian g Zhijian et al (72 , , , ,

12、 , , , , , , , , , , ,Abstract:A water head steady water supplying system is suggested in this paper. This system is combined by seve -ral pumps operated i n parallel. The pu mps work on the principle of binary structure wi thou t freq uency controller. This sys tem works well without need VVVF inve

13、ntor to control the speed of the pump motor, so i ts cost will be low.Application of Com posed F RP and RC Pipe for Sewer Engineering Shen Longhui et al (77 , , , , , , , , , , , , , ,Abstract:The principle to composi te fiberglass -reinforced plas tic and steel reinforced concrete pipe, and the fea

14、ture and constructi on of this special pipe material are presented. The technical feasibility of this kind of sewer pipe has been verified by experimental examination and engineering practice.Calculation of Working Parameters for Pump under Fluctuant Intake Water Level Hu Sike et al (81 , , , , , ,

15、, , , ,Abstract:The problem to maintain stable discharge of pumping equipment in case when the water level at the suction point is fluctuan t is discussed. As a base of speed control of centri fugal p ump, the relationships and calculations of pu mping parame -ters such as rotation speed, delivery h

16、ead and power requirement to fluctuant water level at expected constan t discharge must be assured. The power consumptions of two ways, the pu mp speed control and the valve discharge regulation are compared.Automatic Control System of West WWTP in Kaifeng City Wu Jianlei (89 , , , , , , , , , , , ,

17、 , , , , , , , ,Abstract:As a foreign governmental loan project of fi rst run in Henan Province, the west wastewater treatment plant in Kaifeng City has been constructed. In thi s paper the composi tion of the automatic monitoring and control system, the process -op -erating model and the performance of this WTP are presented. Also some experiences in practical participation of this project are added.Discussion on Design Discharge of Automatic Sprinkling System H uan g Bingzheng (92 , , , , , , , , , , , , , , , ,Abstract:It is unfavorable in design of automatic sp rinkling sys