善興社
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善興社 Company Overview
We are striving to provide "the highest quality" and "the best service."
Zenko Co., Ltd. was established in December 1961, primarily engaged in various cleaning and comprehensive building management services. We have mainly focused on businesses related to "water," such as cleaning drinking water tanks, sewage treatment tank cleaning, and facility maintenance management. In the construction division, we have expanded our comprehensive cleaning facility construction business, starting with various tank cleaning at sewage treatment plants and fecal treatment plants, as well as anti-corrosion work. While designing and constructing various wastewater treatment devices and tertiary wastewater treatment systems, we have also begun the development and sale of advanced dewatering machines, continuously working to expand our business. Currently, we are involved in plant equipment construction centered around sludge treatment facilities, as well as cleaning and recycling work for filtration materials in water purification plants of local governments and private companies. Since our founding, we have been striving to provide "the highest quality" and "the best service."
Business Activities
[Environmental Management Department (Maintenance Management Operations)] ○ Water tank cleaning ○ Underground sewage tank cleaning (building pit) ○ Grease trap cleaning ○ Portable toilet pumping ○ Building cleaning ○ Pool cleaning ○ Septic tank maintenance inspection and cleaning ○ Public health and park management cleaning ○ Comprehensive management services for apartment buildings and condominiums ○ Unsorted waste paper recycling (Black Box) ○ Environmental measures using photocatalysts [Plant Department (Design and Construction of Water Treatment Facilities)] ○ Design and construction of sludge treatment facilities (Multi-disc type Helios, belt press, screw press, centrifuge) ○ Helios dewatering machine rental ○ Design and construction of advanced treatment facilities (sand filtration, ozone, activated carbon, membrane) ○ Design and construction of pre-treatment facilities (drum screen, pressurized flotation) ○ Design and construction of sludge drying and incineration facilities ○ Electric drying equipment (Biopartec) ○ Deodorization equipment (photocatalytic type, catalytic continuous combustion type, combustion type, chemical type) ○ Cleaning and repair work for digesters and various tanks ○ Filter media rehabilitation work (filter media washing and recycling work)
Products/Services (2)
![[Rental] Helios Dehydrator product image](https://image.mono.ipros.com/public/product/image/808/2000226572/IPROS2347112268046971702.jpg?w=280&h=280)
catalog（1）
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Detailed information
| Company name | 善興社 |
|---|---|
| number of employees | 24 |
| Contact address | postalcode 136-0071 Tokyo/ Koto-ku/ 4-12-1 KameidoView on map TEL：03-3685-4321 FAX：03-3685-4250 |
| Key Partners | Tokyo Metropolitan Government and other prefectures Shizuoka City, Kurashiki City, Kaizuka City, Suzuka City, Amakusa City, and other municipalities National sewage treatment facilities Koto Ward, Tokyo and 22 other ward offices Mizuing Co., Ltd., Kuritas Co., Ltd., and other water treatment facility construction and management companies Industrial waste intermediate treatment operators |
| Industry | environment |
善興社 Building Image 
