Haitong Securities Company Limited(600837)
about
Anhui Zhonghuan Environmental Protection Technology Co.Ltd(300692) gem issuing convertible corporate bonds to unspecified objects
Listing recommendation
Sponsor (lead underwriter)
(No. 689, Guangdong Road, Shanghai)
May, 2002
Statement
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”), the measures for the administration of securities issuance and listing recommendation business (hereinafter referred to as the “measures for the administration of recommendation”) and the measures for the administration of securities issuance and registration of companies listed on the gem (for Trial Implementation) (hereinafter referred to as the “measures for the administration of registration”) The Shenzhen Stock Exchange GEM Listing Rules (hereinafter referred to as the “Listing Rules”) and other relevant laws and administrative regulations, as well as the relevant provisions of the China Securities Regulatory Commission (hereinafter referred to as the “CSRC”) and Shenzhen Stock Exchange, are honest, trustworthy, diligent and responsible, issue 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.
1、 Basic information of the issuer
(I) basic information of the issuer
Chinese name Anhui Zhonghuan Environmental Protection Technology Co.Ltd(300692)
English Name: Anhui Zhonghuan Environmental Protection Technology Co., Ltd
Registered address: room 1608, building 1, Zhongzheng International Plaza, No. 948, Fuyang North Road, Hefei, Anhui
Office address: 22 / F, building B1, Zhongchen future port, No. 1120, Dalian Road, Baohe District, Hefei City, Anhui Province
Legal representative: Zhang Bozhong
Date of establishment: December 14, 2011
Listing time: August 21, 2017
Registered capital: 42375043900 yuan
Shenzhen stock exchange where the shares are listed
Stock abbreviation Anhui Zhonghuan Environmental Protection Technology Co.Ltd(300692)
Stock Code: Anhui Zhonghuan Environmental Protection Technology Co.Ltd(300692)
Tel.: 055163868248
Fax: 055163868248
Postal code 230041, 230051
Company website http://www.ahzhhb.cn./
E-mail [email protected].
Environmental protection technology development, consultation and transfer services; Construction of environmental pollution prevention and control works; Environmental engineering design; Management of environmental pollution control facilities; Design and construction of municipal solid waste treatment project; Development and sales of environmental monitoring instruments, equipment, environmental protection building materials and environmental protection protective films; Municipal Engineering (including underground pipe gallery, sponge City, etc.); Business scope of electromechanical installation, automation and intelligent system engineering; Ecological Engineering (black and smelly water body, constructed wetland, soil remediation, etc.); Gardens, landscape and greening; House leasing and warehousing (excluding dangerous goods); Operation of environmental pollution control facilities (limited to branches); Waste incineration power generation and agricultural and forestry waste (biomass) power generation; Solid waste disposal (excluding dangerous goods); Kitchen waste and sludge treatment; Urban and rural sanitation integration project. (for projects subject to approval according to law, business activities can be carried out only after approval by relevant departments)
(II) main business of the issuer
As a high-quality service provider of comprehensive environmental treatment solutions, the issuer’s main business during the reporting period is sewage treatment business and engineering business, which can provide comprehensive services including research and development, design consulting, engineering construction, investment and operation of sewage treatment related technologies and products. At the same time, the company continues to expand the scope of investment and operation of municipal waste incineration technology and power generation projects, and gradually expand the scope of investment and operation of municipal waste incineration technology. The main business of the company is summarized as follows:
1. Sewage treatment business
The company’s sewage treatment business is divided into urban sewage treatment business and industrial wastewater treatment business according to the nature of influent; According to the operation mode, it is divided into investment operation business and entrusted operation business. Investment and operation business refers to the business carried out by the company in the modes of BOT (construction operation transfer), tot (transfer operation transfer), boo (construction ownership operation) and PPP (cooperation between government and social capital). BOT / TOT refers to the franchise right of the sewage treatment plant obtained by signing an agreement with the government department or its authorized party, operating the sewage treatment plant during the franchise period and settling accounts in accordance with the contract, Hand over the sewage treatment plant to the government department upon the expiration of the franchise period; Boo refers to the company’s construction, ownership and operation of sewage treatment facilities and settlement in accordance with the contract through signing an agreement with enterprises in the industrial park. PPP mode carries out relevant projects by establishing a project company jointly held by the company and government departments or their authorized parties or enterprises. Entrusted operation business refers to the entrusted operation agreement signed between the company and the government department or its authorized party and enterprise with the ownership of sewage treatment facilities. The company is responsible for the operation and maintenance of the facilities and settlement in accordance with the contract.
2. Engineering business
The engineering business of the company refers to the design, construction, equipment integration, general contracting and other businesses of urban and rural sewage treatment, municipal pipe network, garden, ecological treatment, wetland, black and smelly water, industrial wastewater, solid waste, garbage treatment and other projects signed by the company and customers in accordance with the agreement. On the premise of not violating the agreement, the company may contract out part of the business of the contracted project to the subcontractor with corresponding qualification according to law, and the subcontractor shall be responsible to the company according to the subcontract. At present, it has a number of qualifications, such as grade I qualification for general contracting of municipal engineering and grade B special qualification for Environmental Engineering (water pollution prevention and Control Engineering).
3. Waste incineration power generation business
The domestic waste incineration power generation project of the company mainly adopts BOT mode, that is, the government grants the company an exclusive franchise within a specific scope and a certain period of time. The licensing company is responsible for the overall design of the project, equipment manufacturing and procurement, construction engineering construction and project operation, and obtains waste disposal fees and power generation income. When the franchise period expires, the company will hand over the project assets to the government free of charge.
In the future, the company will take the sewage treatment business as the main driving force to drive the growth of engineering business, expand the solid waste industrial chain and extend the waste incineration power generation business, so as to make the company develop into a high-quality service provider of comprehensive environmental treatment solutions with “sewage treatment + solid waste treatment” as the main line.
(III) core technology of the issuer
1. Core technology of the issuer
① Technical principle
The technology of precise nitrogen and phosphorus removal and efficient degradation of organic matter in urban sewage is to adopt a number of patented technologies with independent intellectual property rights owned by the company in the sewage treatment system, and set up a complete set of precise control system. The control system is equipped with Cod, TN and TP measuring instruments in the sewage treatment process. According to the concentration of COD, TN and TP in the measuring instrument, the return flow of the internal reflux pump in the biochemical reaction, the aeration volume in the aeration equipment and the dosage in the subsequent coagulation reaction tank are controlled by the main control computer.
② Technical advantages
A. Accurately control the power and drug consumption of the sewage treatment plant and save relevant energy consumption;
B. Avoid excessive discharge of sewage caused by excessive water volume, high water quality or other reasons, so that all sewage indicators can be discharged stably.
(2) Printing and dyeing wastewater treatment technology
① Technical principle
Printing and dyeing wastewater treatment technology is to flocculate and decolorize the wastewater with high-efficiency flocculant and high-efficiency decolorizer in the coagulation reaction stage, and then enter the improved hydrolysis acidification tank and contact oxidation tank for biochemical reaction. The improved hydrolysis acidification tank and contact oxidation tank adopt corridor tank body. Through the arrangement of tank shape, the water body presents a baffled state, which increases the contact time between sewage and microorganisms in the biochemical tank and makes the biochemical reaction fully carried out. At the same time, in the baffled biochemical tank, the concentration and species of organic matter change continuously along the process, and there is a large concentration gradient between various sections along the process, so the degradation rate is fast. Using efficient hydrolysis acidification and aerobic contact oxidation system, through the arrangement of residence time and flow pattern, the pollutants in wastewater can be broken and degraded to the greatest extent.
② Technical advantages
A. The price of high-efficiency flocculant and high-efficiency decolorizer is low, which can effectively reduce the treatment cost of printing and dyeing wastewater;
B. High efficiency flocculant and high efficiency decolorizer have good effects. In coagulation and sedimentation, they can effectively reduce high concentration COD and high chroma, reduce the difficulty of subsequent biochemical treatment, and finally make the sewage discharge up to the standard;
C. The improved hydrolysis acidification tank and contact oxidation tank have the advantages of small floor area, fast pollutant degradation rate, stable sewage flow pattern and convenient packing film hanging. The parameter design and flow pattern layout of the system are more efficient.
(3) Treatment technology of odor gas from textile printing and dyeing wastewater
① Technical principle
The odor gas treatment technology of textile printing and dyeing industrial wastewater is a set of independent research and development device used to treat the industrial odor gas produced by wastewater. The device comprises a sealed container, the lower end of the sealed container is provided with an air inlet, and the top is provided with an air outlet. The sealed container is successively provided with a liquid absorption tank, a multi-layer gas decomposition layer and a gas concentration detector from bottom to top. The air outlet pipe is connected with an air return pipe, and the connection between the air return pipe and the air outlet pipe is provided with an electromagnetic change-over valve. The electromagnetic change-over valve and the gas concentration detector are controlled by the controller.
The odor gas first enters the liquid (ethanol or ether solvent) absorption tank to partially absorb and dissolve the methyl mercaptan and methyl sulfide in the odor gas, and then enters the gas decomposition layer to absorb and degrade the remaining gas through a series of biochemical reactions to remove the pollution components. When the degradation concentration does not meet the standard, the gas concentration detector will feed back the data to the control machine, and control the electromagnetic directional valve to make the gas re-enter the reaction device to ensure up to standard emission.
② Technical advantages
A. It can quickly and efficiently degrade the odor gas in textile printing and dyeing industrial wastewater, so that its treatment and discharge can meet the secondary discharge standard of odor pollutant factory boundary standard in the emission standard of odor pollutants;
B. The device has compact design and small floor area;
C. It has the characteristics of low microbial reaction speed and low biochemical reaction speed according to the characteristics of printing and dyeing wastewater;
D. A gas concentration detector is set at the gas outlet of the device. When the degradation concentration does not meet the standard, it can quickly feed back to the controller to make the gas re-enter the reaction device and ensure the discharge up to the standard.
(4) Treatment and recovery technology of lithium battery production wastewater
① Technical principle
Lift the sewage to the pH adjustment tank for pH adjustment, and control the pH within the appropriate range by PLC. The effluent flows into the reaction tank by itself, add coagulant and coagulant aid in turn, and enter the high-efficiency sedimentation tank for mud water separation after full reaction. The supernatant is lifted to the two-stage precision filter by pump, and the effluent flows into the reuse water tank and is reused to the production workshop; After repeated recycling, the N-methylpyrrolidone (NMP) contained in the wastewater can be recycled after accumulating a certain concentration.
② Technical advantages
A. The whole system can realize zero discharge of sewage and recover NMP accumulated in sewage to meet resource recycling;
B. Convenient operation, high treatment efficiency and stable effluent;
C. The device has compact design and small floor area, and can be moved at any time according to production needs.
(5) Autotrophic denitrification filter technology
① Technical principle
Autotrophic denitrification filter technology refers to an autotrophic denitrification filter technology in which autotrophic denitrifying bacteria use inorganic substances (such as S2 -, S2O32 -, Fe, Fe2 +) as electron donors for nitrate reduction to complete the denitrification process without adding any organic carbon source in the whole process. Autotrophic denitrification filter technology consists of filter denitrification control system, filter material replacement alarm system, constant water level operation control system, nitrogen drive control system and backwash control system. The nitrate nitrogen in the sewage can meet the discharge requirements after being degraded by autotrophic bacteria in the filter, and the autotrophic denitrification filter sewage treatment system is equipped with a filter material replacement alarm system. When the treatment effect becomes worse, the signal will be fed back to the PLC control system and the alarm will prompt to replace the filter material; The operation mode of the whole filter is constant water level operation, and the nitrogen drive system can be started automatically according to the set time. At the same time, automatic backwashing can be realized according to the set liquid level difference. The whole operation process is automatic control.
② Technical advantages
A. The autotrophic denitrification filter is independently designed by our company. The core equipment includes autotrophic filter material, T-shaped filter sector and automatic control system, which can ensure the stable and up to standard total nitrogen in effluent, and this technology has obtained relevant invention patents.
B. In the autotrophic denitrification filter, autotrophic filter material is used to replace the conventional sea sand filter material to complete the denitrification process. There is no need to add any organic carbon source in the whole process, and it also has the function of filtration.
(6) High efficiency multi cycle AAO Process Technology
① Technical principle
On the basis of conventional AAO Process, multi cycle system and mathematical modeling technology system are added, which can effectively strengthen the effect of nitrogen and phosphorus removal; The mathematical modeling technology system can realize the linkage of flow and water quality detection instruments with aeration fans, submersible mixers, nitrification liquid reflux pumps and other equipment, and timely adjust the operating parameters of the sewage treatment system to make the system run in the best state and ensure the stable operation of the biochemical system.
② Technical advantages
A. The multi cycle process adopted has the characteristics of impact load resistance and stable effluent quality;
B. The multi cycle process enhances the effect of nitrogen and phosphorus removal, and the residence time is significantly reduced compared with the conventional AAO Process;
