Hangzhou Energy and Environmental Engineering Co., Ltd.

Key Technology & Equipment

核心技术与关键设备

Hydrolysis and Sand removing

CSTR anaerobic Digestion

High-efficiency Energy-saving mixer

High TS, High ammonia High efficiency digestion

Biogas Desulphurization

Double-membrane Dry-type gas holder

Biogas wet-type desulphurization technology and equipment
National "12th Five-Year" Plan for Science & Technology Support “Research and development of modular biogas equipment”
Basic principle: the absorption solution absorbs H₂S in the tower and converted into elemental sulfur. The saturated absorption solution is then oxygenated,

regenerated and recycled.

Technical features: ①H₂S removal efficiency more than 98%.②Low operation cost.③Suitable for wide range H₂S concentration.

④No residual oxygen in biogas after treatment.

Application: Pretreatment of biogas used to produce bio-methane.
Application: Shandong Minhe (Phase II) 42,000m³/d bio-methane project；Jiangsu Dafeng Poultry Waste 12,000 m³/d Bio-methane Project.

Bio-desulphurization technology and equipment
National "12th Five-Year" Plan for Science & Technology “Research and development of modular biogas equipment”；
Patent No. : ZL 2007 10067269.1/ZL 2013 10420956.2

Basic principle: Hydrogen sulfide was converted into sulfur or sulfurous acid by Thiobacillus under certain temperature, humidity and micro oxygen condition.

Technical features: ①More than 98% H₂S removal efficiency②70% lower operation fee than traditional chemical desulphurization.

③No need to add chemical agent, no secondary pollution.④Easy operation and maintenance.

Application: Desulphurization of biogas used for power generation, boiler and flare.Unit treatment capacity: 100-1200m³/d.

Engineering references: Taiwan Shi’an Farm 0.8MW chicken manure biogas power generation project.

R&D Center

技术研发中心

As a Zhejiang province Hi-tech enterprise, Zhejiang province R&D center for biogas engineering and Zhejiang province key laboratory of biogas utilization technology, HEEE puts technical research as one of company's priorities. HEEE keeps long-term cooperation with biogas companies from Germany, Denmark and other professional organizations, and follows new modes and new trends of biogas technology development. HEEE introduces advanced biogas technology, and actively carries out independent research and innovation, the company has been at the forefront of technology in the field of biogas engineering.

20 invention &utility patents
15 national & provincial awards
Provincial R&D center for biogas engineering
Provincial key laboratory For biogas technology
Manufacture center for biogas key equipment

Undertake 14 state-level, ministry-level research programs

Ecological agriculture demonstration biogas project
(Key Program of science and technology of MOA )
Research of modern construction technology of medium-and-large-scale biogas engineering
(Key program of Ministry of Science and Technology)
Circulation-type high efficient anaerobic reactor
(Key program of Ministry of Science and Technology)
Large-scale high efficient biogas power generation technology and demonstration power plant
(Key program of Ministry of Science and Technology)
Medium-and-large-scale biogas demonstration project
(5 UNDP/GEF demonstration project)
Large scale biogas power generation demonstration project
(National "12th Five-Year" Plan for Science & Technology Support)
Large scale biogas power generation demonstration project
(UNDP/GEF demonstration project/ NDRC project)
SBR wastewater treatment technology and equipment
(National “11th Five-Year” Plan for Science & Technology Support)
Key equipment of Medium-and-large-scale biogas digestion system
(National “11th Five-Year” Plan for Science & Technology Support)
Development and demonstration of medium-and-large-scale all-in-one digester
(National “11th Five-Year” Plan for Science & Technology Support)
Research and demonstration of biogas production and purification by high concentration co-digestion
(National 863 program)
Research and demonstration of centralized co-digestion of high-quality biogas technology and equipment.
(National “12th Five-Year” Plan for Science & Technology Support)
Research of biogas purification and its application for vehicle-use from municipal waste
(National “12th Five-Year” Plan for Science & Technology Support)
Research and development of modular biogas equipment
（National "12th Five-Year" Plan for Science & Technology Support）
Ecological agriculture demonstration biogas project
(Key Program of science and technology of MOA )
Research of modern construction technology of medium-and-large-scale biogas engineering
(Key program of Ministry of Science and Technology)
Circulation-type high efficient anaerobic reactor
(Key program of Ministry of Science and Technology)
Large-scale high efficient biogas power generation technology and demonstration power plant
(Key program of Ministry of Science and Technology)
Medium-and-large-scale biogas demonstration project
(5 UNDP/GEF demonstration project)
Large scale biogas power generation demonstration project
(National "12th Five-Year" Plan for Science & Technology Support)
Large scale biogas power generation demonstration project
(UNDP/GEF demonstration project/ NDRC project)
SBR wastewater treatment technology and equipment
(National “11th Five-Year” Plan for Science & Technology Support)
Key equipment of Medium-and-large-scale biogas digestion system
(National “11th Five-Year” Plan for Science & Technology Support)
Development and demonstration of medium-and-large-scale all-in-one digester
(National “11th Five-Year” Plan for Science & Technology Support)
Research and demonstration of biogas production and purification by high concentration co-digestion
(National 863 program)
Research and demonstration of centralized co-digestion of high-quality biogas technology and equipment.
(National “12th Five-Year” Plan for Science & Technology Support)
Research of biogas purification and its application for vehicle-use from municipal waste
(National “12th Five-Year” Plan for Science & Technology Support)
Research and development of modular biogas equipment
（National "12th Five-Year" Plan for Science & Technology Support）