2. During the process debugging, we find that the time of solving medicament is short, the medicament is not sufficiently solved, the volume of mix and reaction tank is small, the effect of mixing and reaction was not good;
By engineering calculating, the flow chart and the engineering capacities of the main PSB reaction tank, the secondary setting tank and the seaweed pond are obtained.
4 For choosing the optimal start-up time of the reaction tank , the Freedom-degree analysis is done, and the problem of optimizing the start-up is existing in the system where the number of the variables is larger than that of the equations.
It introduces the material selection of lining material, adhesive agent and the impeller of the agitator, the main structure of the reaction tank for the anti corrosive design of the continuous conversion KHSO 4 reaction tanks in series and staggering layout. It summarizes its application and puts forward the improvement measure to the existing problems.
Based on the current process and engineering practice, some new equipment and new processes are designed, such as the slaking of quicklime and its matched suspension slurry, honeycomb duct single reaction tank with single propeller, or special single reaction tank with double propellers for phosphoric acid, continuous defluorine reaction tank for the first neutralization, separating facility for purified phosphate etc. , also the economic benefit is analyzed.
The recently developed pressurized biological oxidation equipment has been used for treating biodegradable wastewater from auxiliary agent plant. Under the conditions of 200 kPa of wastewater pressure in the reaction tank,influent COD of 2800~3000 mg/L and 11~12 h of aeration time,the effluent COD is equal to or less than 200 mg/L,which can meet the discharge limit specified for the industrial sector.
用新研制开发的加压生物氧化设备对助剂厂可生化废水进行了处理试验 ,在曝气罐中废水压力为 2 0 0 k Pa、进水 COD为 2 80 0~ 30 0 0 m g/ L、曝气 11~ 12 h的条件下 ,处理后出水的COD≤ 2 0 0 mg/ L ,达到行业排放标准
It showed that as diluted rate, total saccharide, reducing sugar and the retention period of fermented liquid in reaction tank were 0.155 h -1 ,119.8 g·L -1 ,80.33 g·L -1 , and 3.1 hrs respectively, the remaining total sugar was 3.7 g·L -1 , remaining reducing sugar was 0.6 g·L -1 ,and the utilization ratio of total sugar was 96.91%.
Laboratory selected oil-removing bacteria was added into SBR complex biological reaction tank to treat effluent of a oil separation pool from an oil refining factory,and the results indicated 935% removal for COD,986% removal for oil and 898% removal for TN.
This paper analyses the equilibrium materials of CMF reaction tank and relevant parameters of scries complete Mix Arcation. The results showed that it reformed the current parallel Complete Mix Aeration Tank and improved effluent quality and purifying efficiency.
The laboratory, pilot-scale and industrial tests of A/O biological film process with loft f foer packing treating the acre-lie fibres wastewater were made.The results:how that A/O system of pre-denitrification can fully utilize the organic carbon in the wastewater, reduce foe load of the aerobic stage and the energy consumption,etc.The biological reaction tanks with the soft fiber packing can be.arbitrarly combined and enlarged and cannot be blocked up and short circuiting.The packing is not only suited...
The laboratory, pilot-scale and industrial tests of A/O biological film process with loft f foer packing treating the acre-lie fibres wastewater were made.The results:how that A/O system of pre-denitrification can fully utilize the organic carbon in the wastewater, reduce foe load of the aerobic stage and the energy consumption,etc.The biological reaction tanks with the soft fiber packing can be.arbitrarly combined and enlarged and cannot be blocked up and short circuiting.The packing is not only suited to nitrobacter turn growing, but also is rushproof.The SS in outlet water from cannot the nitrification stage is from 20 mg/L to 30mg/L,the others pollutant'sconcentration can meet the standards.The controiling of process parameters was discussed and explained.
Type-selecting design method and Problems to be notified during the engineering design of R. C. reaction tank with diaphragm are in troduced in thid paper.Advantages and dis advan tages of different types of reac the tanks are discussed andalso the cost comparison.