Shanghai Besters Ltd products

Strathtox in the treatment of wastewater and the design and optimization of treatment processes has a significant role. Able to provide information on the health status of the activated sludge, oxygen consumption rate, respiratory depression and optimize nitrification and aeration and other analytical data.

CST (Capillary Suction Time) is the performance of the test and the state of the sludge filtering a fast and reliable method, which in 1970 has been widely used in foreign countries. Sludge filtration affect virtually all different types of dewatering equipment output, these devices include: drying beds, belt press, vacuum filter, centrifuge filter, and the like. Standard filter by capillary suction pressure generated from a sludge `absorbent` water, water infiltration rate of change in filter sludge states and depend on the filter cake formed on the filtration paper, CST from the hopper of the two standard electrodes spaced request. Obtained through from the beginning to the time between the two electrodes is CST. Water in the funnel by capillary forces generated by the hydrostatic pressure is much larger than the apex, so the test is not dependent on the amount of sludge. As long as there is sludge can produce CST.

This sludge tested by the Water Research Centre stirring timer (Water Research Centre) recommended to evaluate the stability of the sludge. frequently, Be used with Sludge capillary suction time analyzer (CST) in combination.Stirring speed at a certain sludge is stirred, the velocity modeling a shear force. This will evaluate the flocculation treated physical strength, and can get a different sludge dewatering machine stability.

After stirring special volume index SSVI (Stirred Specific Volume) is used to determine the activated sludge settling properties. This is a simple and quick test, but you can get information about sludge settling important information. SSVI treatment plants can be used for routine operations, but also for the design of sedimentation tanks. With manual, detailing SSVI testing process and on the interpretation of the test results obtained.

SSVI readings measured sludge sedimentation rate, turbidity and MLSS are indicative. Measuring instrument with standard SSVI 305 matching. The infrared beam irradiation apparatus, the sludge is absorbed by the infrared light energy associated with the solids. Thus, compared to the sludge sedimentation clarified supernatant will absorb more light, in order to get the sludge height. Sludge height and time available curves can be drawn from these data sedimentation rate and SSVI. The following is an example SSVI chart.

Centrifugal tester can be used to test the compression force of the obtained sludge. The sample of known concentration into the sludge from the crush in order to be simulated corresponding to the rotational speed of rotation of the pressure. For example: 50g pressure within 5 min, and a 3.5 meter deep concentration process the same effect. And CST analyzer used in conjunction. May be at different pressures and different chemical sludge state dosing, the effect obtained. There is a flash unit from the favorite, it and the position of the sample simultaneously, so you can be recorded without interruption tests. Two sample holder from the favorite, centrifugal acceleration of 10 to 100g, the motor speed of 300 to 1000rpm. Input: 115V or 230V 50/60 HZ

The instrument used to measure a small volume gases, particularly generated during long wet, corrosive gases, generated by microbial majority. Automatic measuring chamber flows through a siphon by volume, each siphon once more displayed on a volume, siphon chamber 45 to 55ml, each unit correction alone. No moving parts, does not require regular maintenance, which improves the reliability of the collected data. The instrument can be used in situations need to monitor gases such as water, food, beverage and pharmaceutical industries. Maximum flow rate of 30 liters per minute (lpm), the minimum required pressure of 40mm water.

The MCS-2S combines suspended solids measurement and blanket detection in a single low cost monitoring unit. This unit is intended for continuous operation to monitor the sludge interface and produce the appropriate control signals. Typical applications can be found in various types of settlements tanks. Up to two SH2b/US100 probes can be interfaced with the unit to generate high and low blanket alarm signals.

The WQM-2DO combines dissolved oxygen (DO) and temperature measurement in a low cost monitoring unit. It is intended for continuous operation to monitor the DO in activated sludge plants and produce the appropriate control signals. Typical applications can be found in activated sludge plants to control the aeration process. Up to 2 DO probes can be interfaced with the WQM-2DO unit.

The E-Chek Sand Bed Expansion Check, combining media suspended solids and sand depth expansion measurements, is a low-cost microprocessor-based monitoring unit. The E-Chek profiler unit is intended for continuous operation to monitor Suspended Solids (mg/l or % solids) of the media and Sand Bed Expansion (mm or %) during the backwash process.