Ariz. Admin. Code § 18-2-705

Current through Register Vol. 30, No. 50, December 13, 2024

Section R18-2-705 - Standards of Performance for Existing Portland Cement Plants

A. The provisions of this Section are applicable to the following affected facilities in portland cement plants: kiln, clinker cooler, raw mill system, finish mill system, raw mill dryer, raw material storage, clinker storage, finished product storage, conveyor transfer points, bagging and bulk loading and unloading systems.

B. No person shall cause, allow or permit the discharge of particulate matter from any identifiable process source within any existing cement plant subject to the provisions of this Section which exceeds the amounts calculated by one of the following equations:

1. For process sources having a process weight rate of 60,000 pounds per hour (30 tons per hour) or less, the maximum allowable emissions shall be determined by the following equation:

E = 4.10P^0.67

where:

E = the maximum allowable particulate emissions rate in pounds-mass per hour.

P = the process weight rate in tons-mass per hour.

2. For process sources having a process weight rate greater than 60,000 pounds per hour (30 tons per hour), the maximum allowable emissions shall be determined by the following equation:

E = 55.0P^0.11 -40

where "E" and "P" are defined as indicated in subsection (B)(1).

C. No process source within any portland cement plant shall exceed 20% opacity.

D. No person shall cause, allow or permit discharge into the atmosphere of an amount in excess of 6 pounds of sulfur oxides, calculated as sulfur dioxide, per ton cement kiln feed from cement plants subject to the provisions of this Section.

E. The owner or operator of any portland cement plant subject to the provisions of this Section shall record the daily production rates and the kiln feed rates.

F. The test methods and procedures required by this Section are as follows:

1. The reference methods in 40 CFR 60, Appendix A, except as provided for in R18-2-312 shall be used to determine compliance with the standards prescribed in subsection (B) as follows:

a. Method 5 for the concentration of particulate matter and the associated moisture content;

b. Method 1 for sample and velocity traverses;

c. Method 2 for velocity and volumetric flow rate;

d. Method 3 for gas analysis.

2. For Method 5, the minimum sampling time and minimum sample volume for each run except when process variables or other factors justifying otherwise to the satisfaction of the Director, shall be as follows:

a. 60 minutes and 0.85 dscm (30.0 dscf) for the kiln,

b. 60 minutes and 1.15 dscm (40.6 dscf) for the clinker cooler.

3. Total kiln feed rate, except fuels, expressed in metric tons per hour on a dry basis, shall be both:

a. Determined during each testing period by suitable methods; and

b. Confirmed by a material balance over the production system.

4. For each run, particulate matter emissions, expressed in g/metric ton of kiln feed, shall be determined by dividing the emission rate in g/hr by the kiln feed rate. The emission rate shall be determined by the equation, g/hr = Qs x c, where Qs = volumetric flow rate of the total effluent in dscm/hr as determined in accordance with subsection (F)(1)(c), and c = particulate concentration in g/dscm as determined in accordance with subsection (F)(1)(a).

Ariz. Admin. Code § R18-2-705

Former Section R18-2-705 repealed effective September 26, 1990 (Supp. 90-3). New Section R18-2-705 renumbered from R18-2-505 effective November 15, 1993 (Supp. 93-4).