Lanzhou Mobile Toilet Installation Project

The Lanzhou mobile toilet installation project needs to follow scientific processes and standards, covering site surveys, foundation treatment, container body hoisting, pipeline connection, and equipment commissioning, while also emphasizing material selection, environmental protection features, and maintenance management.

Installation Process and Steps

1. Site Survey and Foundation Treatment
   It is necessary to evaluate the ground bearing capacity, preset drainage paths, and determine water and electricity access points. Foundation treatment involves selecting concrete pre-fabricated bases or steel structure platforms based on soil conditions, with the key being horizontal calibration and anti-settlement design. For example, the ground foundation can use compacted soil or poured concrete cushions to ensure uniform load-bearing, with the foundation horizontal error controlled within three-thousandths.

2. Container Body Hoisting and Main Assembly
   The container body adopts a modular design, with internal pipeline embedding and partition installation completed in the factory, requiring only sealed connections on-site. During main frame assembly, color-coated steel sheets are connected to galvanized steel frames through embedded slots, with sealing strips filled at the joints; wall panels can be metal carved panels, toilet doors are made of aluminum alloy, and ceilings use PVC suspended ceilings.

3. Pipeline and Circuit System Installation
   Internal pipelines follow the principle of "fresh water down and sewage low", with PPR materials used for water supply pipes and a 2%-5% slope maintained for sewage pipes; the circuit system is equipped with independent leakage protection devices, and lighting circuits are concealed with PVC sleeves. Ventilation windows need to be installed with insect screens, and exhaust fan预留口 (reserved openings) should be set on the roof to ensure at least six air changes per hour.

Material Selection and Environmental Protection Features

1. Container Body Materials
   The outer layer of color-coated steel sandwich panels is galvanized aluminum-zinc steel sheets, treated with weather-resistant coatings to resist thermal stress changes, with a polyurethane insulation layer in the middle to maintain stable internal temperatures; hot-dip galvanized materials are used for metal carved panel wall panels, balancing durability and aesthetics.

2. Water Conservation and Excreta Treatment
   The flushing system uses pneumatic assist flow or vacuum suction technology, with a single water consumption of 0.5-1.2 liters, saving over 70% of water; excreta treatment is divided into two paths: biological degradation (converted into neutral fertilizer) and vacuum collection (sealed transportation to treatment stations). Mobile toilets reduce approximately 30% of building material waste throughout their lifecycle and can be relocated as a whole, avoiding construction waste from demolition and reconstruction.

Facility Efficiency and Maintenance Management

1. Efficiency Evaluation Standards
   Pipeline slopes need to be maintained at 2%-5%, and ventilation systems should have at least six air changes per hour to maintain air quality and microbial treatment efficiency.

2. Maintenance Points
   Use biological enzyme cleaners and regularly inspect the sealing system to prevent leaks; monitor the activity of degradation bacteria by observing the foam state in the treatment tank to ensure the stable operation of the excreta treatment system.