逼逼太骚了视频,W永久939W乳液78,妇女操逼资源网,国产suv精品一区二区69

Products Current Location: Home > Products > Products

Acid Purification Unit

This retardation process is based on the separation of the free acid from the metals in a resin bed. Practically it is suitable for all pickling solutions such as HF/HNO3, H2SO4, and HF/H2SO4 etc.

 

In the Steuler Acid Pruitfication Unit (SAPU) the free acid is separated from the metals in a resin bed.

The acid absorbed in the resin bed is eluted with water in a second step and returned to the pickling

line,  while the solution that contains metal salts and is deficient in acid is disposed  at waste water treatment plant.

 

Process description:
In order to guarantee the long-term and safe application of  the Steuler Acid Purification Unit (SAPU)

it is necessary to pretreat the hot,solid-containing pickling solutions: In principal always a complete

solid removal is required  ensuring that no particles at all permeate into resin bed and thus causing blockings, increased pressure loss and reduced capacity. This can be done by our Steuler Acid Micro-

filtration (SAM).

 

According to the temperature, the kind of the pickling acid and the pickling concentrations, it is nece-

ssary to cool acid liquor before the Steuler Acid Purification Unit (SAPU) in order to adjust the optimal operating temperature.  This concerns,  in particular, the recovery of hot sulfuric acid and mixed acid purification. The cooling is designed like the one for the Steuler Acid Microfiltration (SAM):  as a cost-

efficient single-stage or two-stage cooling based on heat recovery.

 

The Steuler Acid Purification Unit (SAPU) uses  an ion exchange resin  that adsorbs the strong acids

from the solution. With water the acid can be desorbed from the resin once again, though. Thus the alternating passing of metal-containing acid and water  through a bed of resin makes it possible to separate the free acid from the metal salts.

 

There are two steps in the basic Steuler Acid Purification Unit (SAPU) process:  the upstroke and the downstroke.  During the upstroke filtered, metal-containing acid is pumped into the bottom of  resin

bed.  The acid is adsorbed by resin and  the remaining de-acidified metallic salt solution is  collected

from the top of the bed.  During the following downstroke water is pumped into the top of the bed,

where it desorbs the purified acid from the resin, and is returned to the pickling line as regenerated

acid. The total cycle lasts a few minutes and is automatically controlled.


The waste acid from the regeneration is collected  together with the concentrated sludge  from the

pre-filtration/sedimentation in the sump pit and conveyed to the waste water treatment plant.

 

The main benefits are:
— High recovery rate of the free acid entailing a short payback period for small-sized plants, in particular for mixed acid (HF/HNO3)
— Saving in operating costs by reduced sludge production and consumption of neutralizer in the waste water treatment plant
— Easy plant design and operation of the recovery system
— Pre-assembly of the plants ensures short delivery periods with low assembly costs at the job-site

Copyright ? 2016 Shanghai History channel than LeBow Engineering Co., Ltd 滬ICP備16020502號 Site Map | Legal Notices
电动车插上电就一绿一红| 午夜免费日韩av网在线| 岳的又肥又大又紧水有多视频| 四十路六十路五十路熟妇| 嗯太粗太大太撑死了视频| 操大逼的那些事| 男人插女人机机| 再深点灬舒服灬免费观看| 大鸡吧民族人肏美女视频| 男子捅女子B啊啊骚网站| 国产最新无码专区在线 | 亚洲一区二区三区四区欧美| 中文字幕av日韩精品一区| 国产呦系列免费| 韩国三级大全久久网站| 鸡吧在快点 受了了网站| 少妇操bbbb操bbb| 秋霞午女人弄到高潮a片| 国产熟女一区二区三区四| 国产,欧美性爱| 天天色天天操天天骚天天碰| 青青操在线免费手机视频| 汉服是日本的还是中国的| 麻豆国产成人AV尤物网| 国产真人无码作爱免费看| 黄色网址aaa| 中文字幕亚洲高清在线二区| 欧美人与动甡交欧美精品| 色综合久久精品| 国产精品成人久久久久久| 国产午夜激无码一级毛片| 男生插女生逼的视频网站 | 不卡青娱乐影视| 国产国语一级毛片在线放| 青娱乐激情视频| 日本三级xxx| 国产自产精品自在线观看| 国语自产拍在线播放视频| 99精品欧美一区二区三区| 青青操视频观看视频网站| 暴肏女人的小骚屄12区|