廢水處理工藝設(shè)計(jì)的光解,除垢,管道與控制-wenkub
2023-03-22 01:26:30 本頁面
【正文】 hemicals often form sludges that require disposal. 酸性廢水調(diào)節(jié)物及其優(yōu)缺點(diǎn) 堿性廢水的調(diào)節(jié) If acidic waste streams are not available or are not adequate to neutralize alkaline wastes, sulfuric acid is monly employed. In some treatment plants, carbon dioxide in the form of flue gas has been used to neutralize alkaline wastewaters. 610 2 調(diào)節(jié) pH常用化合物 610 2 2 成垢可能性分析 With the increasing use that is being made of nanofiltration, reverse osmosis, and electrodialysis in wastewater reuse applications, adjustment of the scaling characteristics of the effluent to be treated is important to avoid calcium carbonate and sulfate scale formation. The formation of scale within the treatment module will cause deterioration in the performance, ultimately leading to the failure of the membrane module. Many theories have resulted in the formation of relative indexes that are used to assess whether a water is undersaturated, balanced, or supersaturated with respect to calcium carbonate. An undersaturated water will tend to dissolve an existing calcium carbonate film。廢水處理工藝設(shè)計(jì)及計(jì)算 第 6章 911節(jié) 目錄 『 CONTENT』 ? 69 PHOTOLYSIS 光解 ? 610 CHEMICAL NEUTRALIZATION SCALE CONTROL STABILIZATION 化學(xué)中和 水垢控制 穩(wěn)定性 ? 611 CHEMICAL STORAGE, FEEDING, PIPING, CONTROL SYSTEMS 化學(xué)貯藏、供給、管道 及控制系統(tǒng) 69 PHOTOLYSIS 69 1 Photolysis is a process by which constituents are broken down by exposure and absorption of photons from a light source. As with AOPs, the primary use of photolysis is for the removal of trace anic pounds in water reuse applications. In natural systems, sunlight is the light source for photolysis reactions, however, in engineered systems, ultraviolet (UV) lamps are used to produce the photonic energy. The effectiveness of the photolysis process depends, in part, on the characteristics of the reclaimed water, structure of the pounds, design of the photolysis reactor, and dose and wavelength of the applied light. The photolysis rate can be estimated from the rate at which the pound absorbs light and the photonic efficiency of the reaction (quantum yield). 定義 69 1 光解工藝 Photolysis Processes Engineered photolysis reactions are conducted in specially designed reactors optimized with respect to UV dose. Photolysis reactors are typically prised of a stainless steel column or pipe containing UV lamps arranged parallel to the flow, perpendicular to the flow, or in a crisscrossing pattern perpendicular to the direction of flow. 原理 The photons that are absorbed cause the electrons in the outer orbital of some pounds forms an unstable pound that splits apart or bees reactive. UV不 O H2O Fenton聯(lián)用。 a balanced water will neither dissolve or form a film。使其沉淀析出，達(dá)到軟化的目的的 方法， 利用這種方法可使水中鈣濃度降低到 10~35 ppm。 01:25:5901:25:5901:253/22/2023 1:25:59 AM ? 1以我獨(dú)沈久，愧君相見頻。 2023年 3月 22日星期三 上午 1時(shí) 25分 59秒 01:25: ? 1比不了得就不比，得不到的就不要。 上午 1時(shí) 25分 59秒 上午 1時(shí) 25分 01:25: ? 沒有失敗，只有暫時(shí)停止成功！。 01:25:5901:25:5901:25Wednesday, March 22, 2023 ? 1不知香積寺，數(shù)里入云峰。 2023年 3月 上午 1時(shí) 25分 :25March 22, 2023 ? 1少年十五二十時(shí)，步行奪得胡馬騎。 01:25:5901:25:5901:253/22/2023 1:25:59 AM ? 1越是沒有本領(lǐng)的就
教學(xué)課件相關(guān)推薦
鄂ICP備17016276號-1