After-sale Service Warranty within and after Guarantee Period

1. Basic requirements of our after-sale service

1) If any quality problems such as design, manufacture, function or procedure occur within the

guarantee period, SCCW shall take full responsibility and bear all the economic losses incurred.

2) If any quality problems occurs within the guarantee period, SCCW shall provide on-site

service after receive the buyer’s notice in 24 hrs.

3) If any big quality problems occurs out of the guarantee period, SCCW will send maintenance

technician to provide visiting service after receive the buyer’s notice in 24 hrs and charge for a favorable price.

4) SCCW will provide a lifetime favorable price to the buyer with the materials and spare parts

used in system operation, equipment maintenance.

The above mentioned are only basic after-sale service requirements, we will make more promises related to quality assurance and operation guarantee mechanism.

2. After-sale service commitment

1) Quality and service commitment :

1.1 After-sale service department:

SCCW will set up a after-sale service department and spare parts center specified for Valin ArcelorMittal Automotive Steel Co.,Ltd Crane in Main Factory Building of Cold Rolling Project and provide professional equipment maintenance engineers.

1.2 Payment of maintenance expense:

All the maintenance expense within the guarantee period shall be borne by SCCW.

1.3 After-sale service measures within the guarantee period

The after-sale service work is an important part of our marketing and sales work. The quality of service provided will not only influence the company credit, but also closely relate to the safely running of the equipments. In order to maintain the good reputation of Hercules, SCCW will strictly observe relevant national regulations about Product-Quality Law and provide high quality products with the principle of hospitable reception, enthusiastic service, quick response and prompt resolution. We will conscientiously implement the after-sale service work in full-scale, and make commitment to our clients as follows:

高速公路服務(wù)區(qū)污水一體化設(shè)備工作原理

厭氧生物濾池簡(jiǎn)介

1、厭氧生物濾池的作用原理

1）、過(guò)濾作用：填料截留過(guò)濾進(jìn)水中的大的顆粒物和懸浮物；

2）、水解作用：厭氧微生物可以將大分子的不溶性的物質(zhì)水解轉(zhuǎn)化為小分子的可溶性的物質(zhì)；

3）、吸收作用：厭氧微生物吸附、吸收水中的有機(jī)污染物，一部分用于自身的生長(zhǎng)繁殖，一部分以沼氣的形式通過(guò)U型水封出；

4）、脫氮作用：將接觸氧化床出水回流至厭氧濾池，厭氧微生物中的反硝化菌可以利用回流水中的硝態(tài)氮并將其轉(zhuǎn)化為氮?dú)?，以去除污水中的氮物質(zhì)。

農(nóng)村污水經(jīng)厭氧濾池處理后，降低了懸浮物、有機(jī)污染物以及氮的濃度，也降低了后續(xù)的接觸氧化床的負(fù)荷。 　2、接觸氧化床的作用原理

1）、吸附作用：好氧微生物在填料上生長(zhǎng)繁殖過(guò)程中相互部結(jié)形成表面積較大的、濃度較高的生物膜，可以大量吸附水中大部分的有機(jī)污染物，使污染物濃度降低；

2）、攝取、分解作用：在向反應(yīng)器內(nèi)不斷通空氣的情況下，好氧微生物可以將吸附的有機(jī)污染物作為營(yíng)養(yǎng)物質(zhì)攝體內(nèi)，進(jìn)行代謝，一部分用于自身的生長(zhǎng)繁殖，一部分轉(zhuǎn)化為二氧化碳和水。

接觸氧化床使農(nóng)村污水中的有機(jī)污染物濃度進(jìn)一步降低，出水CODcr、BOD5去除率達(dá)到80%以上，可以達(dá)到國(guó)家污水排放二級(jí)標(biāo)準(zhǔn)。

3、沉淀池的工作原理

1）、利用重力作用使接觸氧化床出水中比重大于水的懸浮污泥下沉至池底，從而使之從水中去除，保證較好的出水水質(zhì)；

2）、沉降至底部的污泥并自動(dòng)返回至接觸氧化床，以維持接觸氧化床的污泥濃度。

4、消毒池 通過(guò)采用固體氯對(duì)出水進(jìn)行消毒，可有效殺死水中的細(xì)菌、大腸桿菌、病毒等致病微生物，處理后的水清亮透明，無(wú)臭味，細(xì)菌數(shù)和大腸桿菌數(shù)均可符合國(guó)家污水排放標(biāo)準(zhǔn)。

設(shè)備特點(diǎn)

高速公路服務(wù)區(qū)污水一體化設(shè)備優(yōu)點(diǎn)：

地埋式污水處理工藝有多種，在出水達(dá)標(biāo)的前提下，zui突出的優(yōu)點(diǎn)有：

1.設(shè)備埋于地表下，上面可以進(jìn)行綠化，環(huán)境美觀(guān)。

2.整個(gè)設(shè)備一般不需要專(zhuān)人管理。

3.可以減少占地面積，設(shè)備上方可修建停車(chē)場(chǎng)等，無(wú)需建廠(chǎng)房等設(shè)施。

4.對(duì)周?chē)h(huán)境無(wú)影響、污泥產(chǎn)生量少、噪音小于二類(lèi)地區(qū)的標(biāo)準(zhǔn)。

5.操作簡(jiǎn)便、工藝新、效果好、使用壽命長(zhǎng)。

6.設(shè)備可按標(biāo)準(zhǔn)布置，也可隨地形需要特殊布置。

缺點(diǎn)：

1.不利于維修.設(shè)備出現(xiàn)故障后，不方便檢修與更換。這通常是業(yè)主zui煩惱的。

2.對(duì)環(huán)境適應(yīng)性強(qiáng)，冬天防凍、夏天防洪.北方需要埋入較深，并做保溫處理.

什么條件下適合采用高速公路服務(wù)區(qū)污水一體化設(shè)備？

水量較小 、污染物濃度小、成分不復(fù)雜、場(chǎng)地有限、需考慮周?chē)h(huán)境美化因素等。通常以上幾種情況下建議采用地埋式污水處理系統(tǒng)進(jìn)行處理。

1. Select and appoint engineering technicians and workers who are professionally

competent and personally committed to undertake the after-sale service work. Meanwhile set up the service office made up of chief engineer office, project office, technical center, after-sale service department and workshop specialists led and coordinated by marketing and sales department.

2. During the Valin ArcelorMittal Automotive Steel Co.,Ltd Crane in Main Factory

Building of Cold Rolling Project on-site installation and trial un, appoint specialized after-sale service personnel to work at the work place

吉林高速公路服務(wù)區(qū)污水一體化處理設(shè)備玻璃鋼吉林高速公路服務(wù)區(qū)污水一體化處理設(shè)備玻璃鋼