China Securities Co.Ltd(601066)
about
Qingyan Environmental Technology Co., Ltd. made an initial public offering and was listed on the gem
of
Listing recommendation
Sponsor
April, 2002
Statement of recommendation institution and recommendation representative
China Securities Co.Ltd(601066) and the project’s sponsor representatives Xu Xinyue and Qiu Ronghui have been honest, trustworthy, diligent and conscientious in accordance with the company law of the people’s Republic of China (hereinafter referred to as the company law), the securities law of the people’s Republic of China (hereinafter referred to as the Securities Law) and other laws and regulations, as well as the relevant provisions of the CSRC and Shenzhen Stock Exchange, and have issued the listing recommendation letter in strict accordance with the business rules and industry self-discipline norms formulated according to law, And ensure that the documents issued are true, accurate and complete.
catalogue
1、 Basic information of the issuer 5. II. The issuer’s current offering 21 III. sponsor representatives, CO sponsors and other members of the project team for this securities issuance and listing 23 IV. explanation on whether the recommendation institution has any circumstances that may affect the fair performance of recommendation duties V. internal audit procedures and core opinions of the recommendation institution on this securities issuance Vi. matters that the recommendation institution should promise in accordance with relevant provisions 26 VII. The sponsor’s explanation on whether the issuer has fulfilled the decision-making procedures stipulated in the company law, the securities law and the CSRC and Shenzhen stock exchange for this securities issuance and listing VIII. The sponsor’s statement on whether the securities listing meets the listing conditions of the Shenzhen Stock Exchange GEM Listing Rules 28 IX. work arrangement during continuous supervision 28 X. recommendation conclusion of the sponsor on the project thirty
interpretation
In this listing recommendation letter, unless otherwise specified, the following words have the following specific meanings: 1. Interpretation of common terms: sponsor, sponsor refers to China Securities Co.Ltd(601066) organization, China Securities Co.Ltd(601066) securities issuer, company, the company, Qingyan environment, refers to the controlling shareholder of Qingyan Environment Technology Co., Ltd., actual controller refers to the actual controller of Liu Shujie, and refers to Liu Shujie, Chen fuming Liu Xu refers to Shenzhen Qingyan Environmental Technology Co., Ltd., the predecessor of the issuer
This issuance refers to the company’s public offering of no more than 27.01 million common shares (A shares) to the public
Company Law refers to the company law of the people’s Republic of China
Securities Law refers to the securities law of the people’s Republic of China
CSRC refers to the China Securities Regulatory Commission
Exchange and Shenzhen Stock Exchange refer to Shenzhen Stock Exchange
The articles of association refers to the articles of association of Qingyan Environmental Technology Co., Ltd
The reporting period and the last three years refer to 2018, 2019, 2020 and January June 2020
And phase I
Yuan and 10000 yuan refer to RMB yuan and 10000 yuan
2、 Interpretation of professional terms
A / rpir refers to a kind of rpir process package. Adding anoxic process flow on the basis of s-rpir process package to treat sewage can complete denitrification of sewage
A2 / rpir refers to a kind of rpir process package. The anaerobic process flow is further added on the basis of a / rpir process package, which can make the sewage release phosphorus in the anaerobic tank
The abbreviation of biological oxygen demand refers to the amount of dissolved oxygen consumed by microorganisms in the biochemical reaction of decomposing biodegradable organic matter in water under a certain BOD
Chemical oxygen demand is short for chemical method. Cod refers to measuring the amount of reducing substances in water samples that need to be oxidized. It reflects the degree of pollution by reducing substances in water and is a main indicator of pollutant emission
Coupled precipitation rectangular airlift loop bioreactor or reaction precipitation integrated rectangular airlift loop reactor (rpir)
Rpir module refers to a standardized rapid biochemical sewage treatment equipment, which can be freely configured according to the project scale
Quantity is one of the core equipment in rpir process package
It is a highly integrated rapid biochemical sewage treatment equipment, which is one of the core equipment of the nuclear rpir integrated machine in the rpir process package. Its main application fields are source control sewage interception at the small discharge outlet of urban rivers, lakes and reservoirs, decentralized rural domestic sewage treatment, etc
Rpir process package refers to the rapid biochemical sewage treatment product developed by process design, core equipment (rpir module, rpir all-in-one machine) and auxiliary equipment / materials based on rpir technology
As a link in the sewage treatment process, the rpir core equipment is placed in the large tank body or civil tank referred to by the carbon steel rpir tank to form the rpir tank, which can quickly complete the biodegradation process of organic pollutants and realize the continuous separation of clean water and sludge after treatment
S-rpir refers to a kind of rpir process package. The treatment unit in the aerobic section is mainly composed of rpir tank, which can complete the whole process from raw water to standard water discharge
m ³ English form of unit “cubic meter”
m ³/ D refers to the common measurement unit of the scale of sewage treatment project, that is, the amount of water that can be treated in a day
The translation of “reactor” in English refers to a kind of equipment to realize the reaction process, which is used in the real reactor. It refers to the liquid-phase single-phase reaction process and the liquid-liquid, gas-liquid, liquid-solid, gas-liquid-solid and other multiphase reaction processes
Through aeration and other oxygenation measures to maintain a certain area of dissolved oxygen, it is suitable for aerobic microorganism to grow and reproduce.
The main function is to absorb phosphorus and nitrification, and remove organic pollutants such as cod and BOD
As a kind of rpir process package, the hydraulic flow pattern takes the form of vertical flow. The vertical flow a / rpir refers to the vertical arrangement in the same vertical space as the rpir tank in the anoxic process. Due to the full use of vertical space, the floor area can be further reduced
Non oxygenated area of biological reaction tank without nitrate or nitrite. Anaerobic phosphorus accumulation refers to the absorption of organic matter and release of phosphorus by microorganisms in the anaerobic zone. The main function is to release phosphorus and ammoniate some organic matter at the same time
In the discharge standard of pollutants for urban sewage treatment plants (GB 189182002), the standard value of conventional pollutants of basic level I a refers to the control project, which is divided into level I standard, level II standard and level III standard. The first level standard is divided into a standard and B standard. The discharge standard of Grade A is the best
There are differences in the mantissa between the sum of partial totals and individual data in this listing recommendation letter. These differences are caused by rounding.
1、 Basic information of the issuer
(I) overview of the issuer
Chinese Name: Qingyan Environmental Technology Co., Ltd
English Name: Qingyan Environmental Technology Co., Ltd
Registered capital: RMB 81 million
Legal representative: Liu Shujie
Date of establishment of the company: July 10, 2014
Overall change to joint stock company date: September 17, 2020
Address: c527, 5 / F, Tsinghua University Research Institute, No. 019, Gaoxin South seventh Road, high tech Zone community, Yuehai street, Nanshan District, Shenzhen
Postal Code: 518000
Tel: 075586563163
Fax No.: 075586535004
Internet website: www.tsinghuan.com com. cn.
Email: [email protected].
Information disclosure and investor relations department: Securities Department
Person in charge: Dan Limin
(II) the issuer’s main business, core technology and R & D level
The company’s core technology rpir technology is a fast biochemical sewage treatment technology integrating biochemical reaction and precipitated water, which is studied for the oxygen transfer efficiency of aeration area, automatic sludge return effect and sedimentation load. The early technical form of rpir technology was developed by the company’s founder Ms. Liu Shujie and Mr. Chen fuming in the Research Institute of Tsinghua University in Shenzhen for many years, and formed the company’s core technology after independent research and development and iterative upgrading in the project application after the establishment of the company.
Rpir technology has the characteristics of “low investment, small land occupation, low operation cost and simple management”, which effectively solves the industrial problems such as “lack of land, tight construction period, limited investment and high water quality requirements”. The key technical points in rpir technology of the company are as follows:
1. Three phase circulation sedimentation coupling system
The three-phase circulation sedimentation coupling system is a non-Newtonian hydrodynamics theoretical system independently developed and designed by the company, which can improve the circulation velocity and mass transfer. The company creatively put forward the multi factor model of gas holdup liquid circulation velocity solid holdup, deeply analyzed the influence of gas stripping power intensity and circulation area location distribution on mass transfer rate, and constructed a three-phase circulation sedimentation coupling system on this basis, which realized the effective control of particle circulation velocity and mass flow rate in a specific area, and improved the partition mass transfer efficiency and solid-liquid separation efficiency in the circulation sedimentation coupling system. 2. Coupled precipitation rectangular airlift loop bioreactor
Coupled sedimentation rectangular airlift loop bioreactor is a reactor designed and constructed based on the hydrodynamics of three-phase loop sedimentation coupling system. It can realize efficient interception of activated sludge, improve mass transfer and reaction effect, shorten reaction time and reduce the floor area of sewage treatment facilities. The company standardized and equipped the coupled precipitation rectangular airlift loop bioreactor as the core structure, forming one of the core equipment of the company’s main product rpir process package – rpir module.
3. Rpir integrated technology
Through process improvement and water mechanics design, the company miniaturized the rpir module on the basis of ensuring the effluent effect, formed a “mini module”, placed in the box, and equipped with auxiliary equipment / materials such as pipeline, mechanical equipment and electrical control to form an rpir integrated machine. Rpir all-in-one machine has a complete sewage treatment process, which is easy to install and does not need civil engineering, effectively reducing the cost of sewage treatment projects; It can be put into use quickly and meet the requirements of rapid implementation of water treatment projects; It can be connected in parallel freely and has strong adaptability to the project site. It is widely used in decentralized sewage treatment projects.
4. Rpir water treatment series process
The company adheres to the continuous technical upgrading and research of rpir technology, combined with many years of experience in R & D and design of sewage treatment projects, and forms a series of new sewage treatment processes with rpir technology as the core, such as s-rpir and a-rpir, on the basis of summarizing a large number of experimental data and actual operation data of the project ²/ Rpir, a / rpir, vertical
Stream a / rpir, etc. These new processes can not only meet the different needs of users, but also simplify sewage treatment
