13.-0146. Bin composting.

Watsan matters
13.-0145. Best practice.
13.-0144. Benefits.
13.-0143. Beneficiary assessment.
13.-0142. Bedrock.
13.-0141. Bedrock aquifers.
13.-0140. Bay.
13.-0139. Batch reactor.
13.-0138. Basin.
13.-0137. Basin irrigation.
13.-0136. Basicity.
13.-0135. Basic sanitation.
13.-0134. Basement.
13.-0133. Baseflow.
13.-0132. Base.
13.-0131. Base of the pyramid.
13.-0130. Bar rack.
13.-0129. Bank filtration.
13.-0128. Bacteriological analysis.
13.-0127. Bacteria.
13.-0126. Backwashing.
13.-0125. Backwash.
13.-0124. Background.
13.-0123. Backflush valve.
13.-0122. Backfilling.
13.-0121. Backfill.
13.-0120. Axial flow pump.
13.-0119. Awareness raising.
13.-0118. Awareness raising for demand creation.
13.-0117. Available chlorine.